Write The Chemical Symbols For Three Different Atoms Or Atomic Anions With 36 Electrons (2023)

Chemistry College

Answers

Answer 1

Explanation:

An element with atomic number 36 is krypton and symbol which represents it is Kr.

Atomic number of bromine is 35 and when it gains an electron it forms bromine ion (). Total number of electrons in are 36.

Atomic number of Selenium is 34. When it gains two electrons then it forms ion. Therefore, total number of electrons present in ion are 36.

Hence, chemical symbols for three different atoms or atomic anions with 36 electrons are Kr, , and .

Answer 2

Kr, Br⁻ y Se²⁻ are isoelectronic, that is, they have the same number of electrons (36).

Krypton has an atomic number of 36, which means it has 36 protons. Since it is electrically neutral, it has the same number of protons (positive charges) as electrons (negative charges). Thus, Kr has 36 electrons.

Bromine has an atomic number of 35, which means it has 35 protons and 35 electrons. When it gains 1 electron, it forms the anion Br⁻, which has 35 + 1 = 36 electrons.

Selenium has an atomic number of 34, which means it has 34 protons and 34 electrons. When it gains 2 electrons, it forms the anion Se²⁻, which has 34 + 2 = 36 electrons.

Kr, Br⁻ y Se²⁻ are isoelectronic, that is, they have the same number of electrons (36).

You can learn more about isoelectronic series here: brainly.com/question/19157981

Related Questions

The surface temperature on Venus may approach 751 K. What is this temperature in degrees celcius

Answers

To convert K to C subtract 273.15.

739K-273.15C= 465.85 C or approximately 466C

To convert F to C multiply by 1.8 and add 32.

so the answer is approximately -167 degrees celcius

A classroom has a volume of 278 m3. What is its volume in
km3

Answers

1 m = 0,001 km
1m³ = 0,000000001 km³

278 m³ = 0,000000278 km³ = 2,78×10^(-7) km³

:•)

Answer:

Explanation:

1m3 = (10-3 km)3

1m3 = 10-9 km3

285m3 x 1 km3 = 2.78 x 10-7 km3

_____ ______

1m3 10-9 m3

Water boils at a higher temperature than a non polar solvent like ether because

Answers

Generally, polar compounds have stronger intermolecular forces than nonpolar molecules. Particularly, water is a polar solvent that has hydrogen bonding between the H and O atom. Hydrocarbons, on the other hand, have only sigma bonds. Since hydrogen bonding is stronger, you would need more energy to break the bonds to transform liquid phase into gaseous phase through boiling.

Under the Implied Consent law, which of the following is true? A. Your driving privileges will be suspended if you refuse a chemical test to measure your alcohol level.
B. Drivers are deemed to have automatically consented to submit to a chemical test for alcohol or drugs.
C. Drivers of all ages are subject to an Administrative License Revocation.
D. All of the above

Answers

The answer is c

Drivers of all ages are subject to an Administrative License Revocation.

What is an example of implied consent?

Implied consent means that the patient's actions reflect the patient's consent to treatment or procedures. For example, a patient who makes an appointment for a flu shot keeps the appointment, and then rolls up his sleeve for the doctor to give the shot is presumed to have consented to receive the flu shot.

Answers

According to the stoichiometry, amount of acetic acid is in excess.

What is stoichiometry?

It is the determination of proportions of elements or compounds in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.

Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample.

As per the chemical reaction between sodium bicarbonate and acetic acid and as per stoichiometry,84.007 g of sodium bicarbonate reacts with 60.052 g of acetic acid .Therefore, 83 g of sodium bicarbonate will react with 83×60.052/84.007=59.33 g of acetic acid.

As the given amount of acetic acid is greater than the calculated amount, it is considered to be present in excess in the solution.

Learn more about stoichiometry,here:

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MNaHCO₃: 23+1+12+(48×3) = 84g
mCH₃COOH: 12+(1×3)+12+(16×2)+1 = 60g
.................
84g NaHCO₃ react with 60g CH₃COOH
83g NaHCO₃ react with...........

84g ----- 60g
83g ----- X
X = 59,29g CH₃COOH

We used 70g CH₃COOH, it' too much.
So, acetic acid is excess reagent, and sodium bicarbonate is limiting reagent.
_______________________________
B)Amount of CH3COOH is in excess.

:•)

As the number of carbon atoms in an alkane increases, its number of isomers increases dramatically. Which statement correctly explains this fact? A)Chains of carbon atoms can be of different sizes. Eliminate
B)Hydrogen atoms are attached to each carbon atom in the chain.
C)The bonding between carbon atoms allows for branches in carbon chains.
D)A carbon atom may be joined to other carbon atoms by single, double, or triple bonds.

Answers

There are two types of chemical compound one is covalent compound and other is ionic compound, covalent compound formed by sharing of electron and ionic compound formed by complete transfer of electron. Therefore, the correct option is option C.

What is chemical Compound?

Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.

An ionic compound is a metal and nonmetal combined compound. Ionic compound are very hard. They have high melting and boiling point because of strong ion bond. The bonding between carbon atoms allows for branches in carbon chains. Covalent compounds possess weak bond. These have low melting and boiling point.

Therefore, the correct option is option C.

To learn more about chemical compound, here:

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The correct answer isC)The bonding between carbon atoms allows for branches in carbon chains.
Good Luck, I hope this helps!!

Combustion analysis of an unknown compound provides the following data: 98.28 grams carbon (C), 16.21 grams hydrogen (H), and 65.52 grams oxygen (O). What is the percent composition of carbon in this compound? 6.06% C 54.6% C 33.3% C 36.4% C

Answers

Answer : The correct option is, 54.6 %

Explanation: Given,

Mass of C = 98.28 g

Mass of H = 16.21 g

Mass of O = 65.52 g

First we have to calculate the total mass of the compound.

Total mass of compound = Mass of C + Mass of H + Mass of O

Total mass of compound = 98.28 + 16.21 + 65.52 = 180.01 g

Now we have to calculate the percent composition of carbon in the compound.

Formula used :

Now put all the given values in this formula, we get the percent composition of carbon in the compound.

Therefore, the percent composition of carbon in the compound is, 54.6 %

Total mass ---->>>> C+H+O = 98,28 + 16,21 + 65,52 = 180,01 g

Answers

Answer: Option (B) is the correct answer.

Explanation:

When a large nuclei divides into small nuclei then this process is known as fission.

Fission reaction is similar to a decomposition reaction because in a decomposition reaction also there is splitting of a compound into different atoms or ions.

For example, decomposition reaction for compound will be as follows.

Whereas fusion process is a process where two small nuclei combine together to form a larger nuclei.

Fusion is similar to synthesis reaction because in a synthesis reaction two atoms combine together to result in the formation of a compound.

For example, synthesis reaction for water is as follows.

Therefore, we can conclude that fission is a decomposition reaction while fusion is a synthesis reaction.

B)Fission is a decomposition reaction while fusion is a synthesis reaction.

:•)

An advertisement for a new fish food claims that lab studies show that fish grew three inches in three weeks while eating the food. Travis wondered if the food was worth the extra cost. To evaluate the claim in the advertisement, Travis should
A)look at the data for the control group to see how much the fish grew without the new food
B)check the lab results to see if the researchers changed the dependent variable in the same way
C)examine the data to find how the researchers changed the variables within the control group
D)determine if the results show the independent variable changing as the dependent variable was changed

Answers

Its A that's what I chose

i put a for my answer.

Which pure substance would have the lowest vapor pressure? A)C2H6(l) B)H2O(l) C)NaCl(s) D)O2(g)

Answers

The answer is C lol i just guessed on USA test prep and I was right

Answer:

The answer is C.

Explanation:

And i hope this helped

Which material would have the weakest attraction between its particles? A)Salt, which is an ionic compound with forces between ions. B)Water, which is a polar covalent molecule with hydrogen bonding. Eliminate C)Nitrogen gas, which is a nonpolar covalent molecule with dispersion forces. D)A diamond, which is a network covalent molecule with bonds between many atoms.

Answers

Answer:

Nitrogen gas, which is a nonpolar covalent molecule with dispersion forces.

Explanation:

Nitrogen gas is a diatomic gas composed of nonpolar covalent bonds. This implies that the gas particles are held together strictly by weak van der Waals forces.

Van der Waals forces represents the weakest level of intermolecular interaction. They are mostly found in nonpolar substances especially gases. Hence, nitrogen gas will exhibit the weakest degree of inter-particle attraction among all the options listed.

the answer is C, Nitrogen gas,which is a nonpolar covalent molecule with dispersion forces

Jill said that when you are standing in front of a fire you are warm because you release the coolness of your body to the heat of the fire. Greg said that when you are standing in front of a freezer with the door open you feel cool because you are releasing your heat into the freezer.
Who has made the accurate statement regarding heat transfer

Answers

Answer: Greg has made the accurate statement

Explanation: Heat transfers from a body with higher temperature to a body with lower temperature, this is a gradient of temperature and is the cause of heat transfer. In fact, cool is just the absents of heat or is just the sensation of a body with low temperature than other.

Greg is accurate. Heat moves from areas of high temperature to low temperature via radiation, conduction andconvection.

A compound consisting of b, n, and h undergoes elemental analysis. the % composition by mass is found to be 40.28% b, 52.20% n, and 7.53% h. what is the empirical formula for this molecule? enter in the empirical formula in the form bxnyhz.

Answers

To compute for the empirical formula, assume there is 100 grams of the compound. That means there is 40.28 g B, 52.2 g N and 7.53 g H. Convert the mass into moles using their molar masses:

40.28 g B * 1 mol/10.811 g = 3.725835 mol B
52.2 g N * 1 mol/14 g = 3.72857 mol N
7.53 g H * 1 mol/1 g = 7.53 mol H

Divide all the moles by the smallest amount which is 3.725835 mol.

B: 3.725835/3.725835 = 1
N: 3.72857/3.725835 = 1
H: 7.53/3.725835 = 2

Therefore, the empirical formula is BNH₂.

Calculate the ph of a solution that is 0.135 m hcl.

Answers

[HCl] = [H+] = 0,135M

pH = -log[H+]
pH = -log0,135
pH = 0,87

:•)

Give the major force between acetone and chloroform.

Answers

Says here the answer isdipole-dipole

What is the relationship between oxygen use and heat production?

Answers

Oxygen use and heat production are directly proportional with each other. So, as oxygen use increases, heat production would also increase and if oxygen use decrease, then heat production is decreased as well. Oxygen is known to be involved in the release of energy from nutrients. The energy produced is what drives the metabolic reactions that occurs. The more heat that is produced, the faster the other reactions happens.

The nutrition label on rice lists the amounts of proteins, carbohydrates, and fats in one serving. These substances are important for human nutrition. How are proteins, carbohydrates, and fats related to the discipline of chemistry?

Answers

Carbohydrates, proteins and fats are biological macro molecules that are made up of chemical elements which are inherent to chemistry.
Chemistry explain how these macro molecules are bonded together at the molecular level and give explanation for their behavior.

draw a representation that shows the interactions between the solute and solvent in an aqueous solution of potassium bromide

Answers

The visualization of the solute and solvent in an aqueous solution is such that the solute molecules are surrounded by solvent molecules, which in this case is water.

The potassium bromide will be found in the form of potassium and bromide ions. Both of these ions will be surrounded by water molecules. In the case of potassium, because it is a positively charged ion, the oxygen atoms of the water molecules will be close to the ion and the hydrogen atoms will be on the other side. The opposite will occur with the bromide ions due to their negative charge.

A star is estimated to have a mass of 3x10^36 kg. Assuming it to be a sphere with an average radius of 7.6x10^5 km, calculate the average density of the star in units of grams per cubic centimeter.

Answers

Given:
m = 3 x 10³⁶ kg, the mass of the star
r = 7.6 x 10⁵ km = 7.6 x 10⁸ m

Calculate the volume of the star (as the volume of a sold sphere).

Calculate the density the star.
By definition, the density of the star is

In g/cm³, the density is

Answer: 1.6315 x 10⁶ g/cm³

Insulin is a protein that is used by the body to regulate both carbohydrate and fat metabolism. A bottle contains 340 mL of insulin at a concentration of 20 mg/mL . What is the total mass of insulin in the bottle?

Answers

You are given the concentration in terms of milligrams per milliliter and volume in terms of milliliter. Through dimensional analysis, you know that you can end up with the unit of milligrams if you multiply the concentration with the volume. The solution is as follows:

Mass = Concentration* Volume
Mass = 20 mg/mL * 340 mL
Mass = 6,800 mg insulin