Question

The table shows the proton numbers of four elements.
element
Q 9
R 11
T 17
Z 19

proton number
Which statement is correct?
A .Qis a metal.
B .Qis more reactive than T.
C .R is more reactive than Z.
D. and Z are in the same period.

Answer 1

Answer:

Opt D

Explanation:

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