Which location represents a period on a periodic table?   a. a vertical row   b. a horizontal row   c. a diagonal row on the periodic table   d. a row on the left and right of the table

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

What is the percentage of hydrogen in nitrogen trihydride

Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull