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Dafna1 [17]
3 years ago
10

Explain the significance of groups and periods on the periodic table

Chemistry
1 answer:
katrin2010 [14]3 years ago
3 0

A period is a horizontal row of the periodic table. There are seven periods in the periodic table, with each one beginning at the far left. ... A group is a vertical column of the periodic table, based on the organization of the outer shell electrons. There are a total of 18 groups.

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1.25e-7

Explanation:

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Semmy [17]

Answer:

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Explanation:

The reaction expression is given as:

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 Let use a mathematical approach to solve this problem;

  Assign variables a,b and c as the coefficients that will balance the expression:

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Conserving Li: a  = c

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          let a = 1, c  = 1 and b  = \frac{1}{2}  

  Multiply through by 2;

        a  = 2, b = 1 and c  = 2

               2Li   +   F₂    →    2LiF

 

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3 years ago
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4 years ago
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