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mash [69]
3 years ago
12

As you move from top to bottom down a group on the periodic table size of an atom will

Chemistry
2 answers:
Paladinen [302]3 years ago
6 0

Answer:

Increase,

Explanation:

More  electrons are present in the atoms as you descend the group and they fill the outer electron shells.

Xelga [282]3 years ago
5 0

Answer:

increase

Explanation:

As you move from top to bottom down a group on the periodic table size of an atom will increase because the number of electron levels increases, so radius of the atom increases.

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Can some atoms exceed the limits of the octet rule in bonding? If so, give an example.
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Answer:

Yes. Example: <u>Sulfur hexafluoride (SF₆) molecule</u>

Explanation:

According to the octet rule, elements tend to form chemical bonds in order to have <u>8 electrons in their valence shell</u> and gain the stable s²p⁶ electronic configuration.

However, this rule is generally followed by main group elements only.

Exception: <u>SF₆ molecule</u>

In this molecule, six fluorine atoms are attached to the central sulfur atom by single covalent bonds.

<u>Each fluorine atom has 8 electrons in their valence shells</u>. Thus, it <u>follows the octet rule.</u>

Whereas, there are <u>12 electrons around the central sulfur atom</u> in the SF₆ molecule. Therefore, <u>sulfur does not follow the octet rule.</u>

<u>Therefore, the SF₆ molecule is known as a </u><u>hypervalent molecule</u><u> or expanded-valence molecule.</u>

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3 years ago
How many valence electrons are in a stable ion of a period 4 metal?
marusya05 [52]
What kind of metal is it
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3 years ago
Bromine has a density of 3.10g/cm3. If you have 50.0 ML of bromine, how many grams do you have?
Zanzabum

Answer:

The answer is

<h2>155 g</h2>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

<h3>mass = Density × volume</h3>

From the question

volume of bromine = 50 mL

density = 3.10 g/cm³

It's mass is

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We have the final answer as

<h3>155 g</h3>

Hope this<u> </u>helps you

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