Sulfur is more metallic than ________.

Sn has 68 neutrons.

Identify the physical change in the following list.

Calcium has ________ valence electron(s).

Sulfur atoms are larger than than ________ atoms.

Which of the following would NOT be a physical change?

A p orbital has ________ lobes.

In the following list, which is the polar molecule?

Chromium is an example of an element that is a ________.

The symbol of the element in Period 3 and Group 2A(2) is ________.