Science, asked by bhanushalih405, 1 month ago

14. Which of the given elements A, B, C, D, and E with atomic number 3, 11, 15, 18, 19
respectively belong to the same group?
(a) A, B, C
(b) B, C, D
(C) A, D, E
(d) A, B, E
​

Answers

Answered by hardik4275
0

Answer:

For B, C, D, the second shell is being filled, so they belong to the second period. For E, the fourth shell is being filled, so it belongs to the fourth period. So B, C, D belong to the same period. Therefore, the correct answer is option (B).

Answered by ilampuyalarul
0

Answer:

a or d, b or c

Explanation:

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