the atomic number of two elements A and B are 19 and 13 respectively. a) identify the group no of A and B
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Explanation:
A19= 2,8,8,1
Group number: 1
period : 4
B13= 2,8,3
Group number: 12
period: 3
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Answer:
Atomic no 11 will have the highest metallic property which is sodium.
Atomic no 8 is oxyzen
When sodium reacts with Oxyzen it will form. Na
2
O
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