Science, asked by cheniramutaurus, 9 months ago

Observe the given table and answer the following question :
· Elements
А
B
C
D
Atomic number
11
2
7
19
Identify the two elements that belong to the same period and the two elements
that belong to the same group. Give reason for your conclusion.

Answers

Answered by Sloday141

2

Answer: a. Sodium

B. Helium

C.Nitrogen

D. Potassium

Explanation:

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