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Jet001 [13]
3 years ago
8

The figure above shows the basic concepts of cell division

Chemistry
1 answer:
Cerrena [4.2K]3 years ago
6 0
A. DNA is copied. 
- The cell duplicates its DNA in order to have a complete set in eac cell when it divides.

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Give the electron configuration for F.
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Answer:

1s² 2s² 2p⁵

Explanation:

The elements of group 17 are called halogens. These are six elements Fluorine, Chlorine, Bromine, Iodine, Astatine. Halogens are very reactive these elements can not be found free in nature. Their chemical properties are resemble greatly with each other. As we move down the group in periodic table size of halogens increases that's way fluorine is smaller in size as compared to other halogens elements. Their boiling points also increases down the group which changes their physical states. i.e fluorine is gas while iodine is solid.

Properties of fluorine:

1. it is yellow in color.

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4. fluorine has pungent smell.

5. its reactions with all other elements are very vigorous except neon, oxygen, krypton and helium.  

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7. its atomic mass is 18.99 amu.

Electronic configuration:

₉F = 1s² 2s² 2p⁵

4 0
3 years ago
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