How are elements similar in a group/family on a periodic table? A. they all are non metals
B. they have the same number of valence electrons
C. they all are metals
D. They have a full outer shell

Identify which properties could correspond to solids, plasmas, or both. maintain a unique shape. collide infrequently with other particles. have very high velocities. conduct electricity. protons. have a low temperature. has long-range order.

The answer for #3 is c but i don't know why

If 3.00 g of titanium metal is reacted with 6.00 g of chlorine gas, cl2, to form 7.7 g of titanium (iv) chloride in a combination reaction, what is the percent yield of the product?