Ionization refers to the process of

a.
changing from one period to another.
c.
turning lithium into fluorine.
b.
losing or gaining protons.
d.
losing or gaining electrons.

Which of the following statements is not true? • a. covalent compounds have low melting and boiling points. • ob. covalent bonds between atoms of a compound are relatively weak compared to bonds between molecules. • c. covalent bonds occur between nonmetals. • d. covalent compounds are often gases or liquids.

At a temperature of 393 k, the temperature of a sample of nitrogen is 1.07 atm what will the pressure be at a temperature of 478 k

Design techniques and materials that reduce the negative environmental impact of a structure are referred to as