Why do nonmetals tend to gain electrons to form negative ions?

Which class of elements will contain both solids and gases at room temperature?

Group 1A element sodium combines with Group 7A element chlorine to form sodium chloride or table salt.

If 2.4 g of n2 gas has a volume of 0.40 l and a pressure of 6.6 atm, what is its kelvin temperature?

Give the oxidation numbers of all atoms in NaMnO4

Which 4 elements make up the bulk of living matter?

What kind of group 1 atoms are the most reactive? a. Small atoms c. Atoms with the most electrons in the valence level b. Large atoms d. Atoms at the top of the periodic table

What does it mean when there are 2.3 x 10-4 moles?

Electric force is an A. attraction and repulsion between protons and electrons . B. attraction and repulsion between protons and neutrons. C. attraction and repulsion between neutrons and electrons.

A salt crystal has a mass of 0.18 mg. how many nacl formula units does it contain?

Which of the following is easist to accelerate? A. bowling ball B. tennis ball C. golf ball D. ping pong ball