2 years ago

Describe how PERIODS and GROUPS are set up on the Periodic Table of Elements.

1 answer:

8 0

Answer:

Periods are horizontal rows (across) the periodic table, while groups are vertical columns (down) the table. Atomic number increases as you move down a group or across a period.

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Explanation:

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Aliun [14]

Note the formula

$\boxed{\sf Mass\:no=No\:of\:protons+No\:of\:neutrons}$

For X:-

No of protons:-

$\\ \sf\longmapsto 19-10=9protons$

It is Fluorine.

For Y:-

No of protons:-

$\\ \sf\longmapsto 16-8=8protons$

It is Oxygen.

Option D is correct

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1 year ago

Can someone help me with chemistry?

mihalych1998 [28]

<span>Right answer is D
</span>

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2 years ago

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What directions do periods go on a periodic table

labwork [276]

Answer:

left to right

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アバカはマラマラ田畑はあやら田畑や阿波田畑はあや綾

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2 years ago

As the elements in Period 2 are considered in order from lithium to fluorine, there is an increase in the

Lunna [17]

There is an increase in many things, you have to be specific. there is an increase in protons, the ionization energy is increased, the atomic weight, the atomic number

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