An element has 13 electrons in its M shell and 1 electron in N shell in ground state. Identify the element.

An element has 8 electrons in the valence shell

An element has 18 electrons in the outer most shell. The element is

An element has 2 electrons in its K-shell. 8 electrons in L-shell, 13 electrons in M-shell and one electron in N-shell. The element is

An element has 2 electrons in its K-shell. 8 electrons in L-shell, 13 electrons in M-shell and one electron in N-shell. The element is

Element X has two electrons in its M shell. Identify the element.

An element has one electron in the 'M' shell. Identify the element.

An element A has 2 electrons in its, fourth shell. State its valency

An element Y has three shells with four electrons in the valence shell. Another element X has twice as many electrons in its second shell as in its first shell. i] Identify the elements X and Y. ii] Is there any similarity between the element Y and X? If so, what?