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Maslowich
3 years ago
13

What is the difference between a cesium atom (Cs) and a cesium ion (Cs+1)?

Chemistry
1 answer:
ELEN [110]3 years ago
5 0

Answer:

The difference between a cesium atom (Cs) and a cesium ion (Cs+1) is of 1 electron.

Explanation:

Cesium is an S-block element placed in 1st group and 6th period of modern periodic table.The atomic number of Cs is 55. It has only one valence electron, when we remove that valence electron from Cs atom it becomes Cs+ ion. After removal of valence electron the number of protons and neutrons do not get affected. But the size of Cs+ ion becomes shorter than Cs atom.

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For metallic structures, does the packing efficiency (see sample exercise 12.1 in textbook) increase or decrease as the number o
qaws [65]
Metallic solids or metallic structures experience metallic bonds which are the forces of attractions between the sea of electrons and the nucleus of the metallic atoms. They share a network of highly delocalized electrons.
I therefore think that the packing efficiency decreases as the number of nearest neighbors decreases.
5 0
3 years ago
I’d appreciate the help! :)
seraphim [82]

Answer: 300g

Explanation:

first we write the given values on top

224L. x

3 NO2 (g) + H2O (l) = 2HNO3 (l) + NO (g)

22.4L 30g

then we form a formula

224L/22.4L= x/30g

224*30/22.4

6720/22.4= 300g

7 0
3 years ago
The chemical formula of ordinary sugar is C12H22O11. Calculate the mass of 7.35 mol of sugar.
ch4aika [34]

First, you need to find the mass of 1 mol of sugar. Mass, or molar mass, can simply be found by adding the masses of the individual elements. These are given to you on the periodic table.

C_{12}H_{22}O_{11}

12 x 12.011 grams (molar mass of Carbon) = 144.132 g

22 x 1.008 grams (molar mass of Hydrogen) = 22.176 g

11 x 15.999 grams (molar mass of Oxygen) = 175.989 g

Add all of the pieces together.

144.132 g + 22.176 g + 175.989 g = 342.297 grams

So, if one mole has 342.297 grams, then 7.35 of that amount will be your answer.

342.297 g/mol x 7.35 mol =  2,515.88 grams

7 0
3 years ago
1. How many molecules are in 4.5 moles?
Naily [24]

Answer:

2.4 ⋅ 10 24

Explanation:

All that you need to know here is that in order for a given sample of water to contain exactly  1  mole of water, it must contain  6.022 ⋅ 10 23  molecules of water.

This is known as Avogadro's constant and essentially acts as the definition of a mole. If you have  6.022 ⋅ 10 23  molecules of water, then you can say for a fact that you have  1  mole of water.

6 0
3 years ago
Why are the noble gases (group 18) inert?
dalvyx [7]

The noble gases are relatively unreactive because they have a stable octet of valence electrons.

Thus, they do not tend to undergo reactions in which they will gain or lose valence electrons,

However, <em>only He, Ne, and Ar are inert</em>. Kr and Xe combine with other highly reactive elements to form stable compounds.

8 0
3 years ago
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