Y10D-UNIT 4 & 5 BINGO

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CARLOS MARIA
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chemistry
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1

4.1-What is meant by the term valency?

Is the number of electrons its atoms lose,gain or shareto form a compound

2

4.1- name 2 gigant structures ant tell me what information do they tell you.

Sodium Chloride and Silicon Dioxide

They tell you the ratio of the ions or atoms in the compound

3

4.2-What is the valency of each group?

group1=1

group2=2

group3=3

group4=4

group5=3

group6=2

group7=1

4

What is the symbol for Hydroxide

OH

5

What is the symbol for Sulfate

S04

6

Nitrate

NO3