Which of the following elements with atomic (RBSESolutions.com) numbers 11,19,14,18,23 belong to the same period?
A. 11,14, 23
B. 11,18, 23
C. 11,14,18
D. 14,19, 23
Answer:C
Which of the following elements with atomic (RBSESolutions.com) numbers 11,19,14,18,23 belong to the same period?
A. 11,14, 23 B. 11,18, 23 C. 11,14,18 D. 14,19, 23