Nitrogen is an element with the symbol N and the atomic number is 7. Its electronic configuration is represented as……
a) 2,5
b) 2.6
c) 5,2
d) 22
What
is the sequence of the elements in the periodic table, 3Li, 4Be,
2He, 7N?
a) He, Li, Be, N
b)
N, Li, Be, He
c) He, N, Li, Be
d) N, He, Li, Be
