The measure of how strongly an atom attracts an electron to itself is called

a. covalency
b. ionization potential
c. electropositivity
d. electronegativity
e. none of the above

clouds form

solid ice forms on leaves.

water droplets form on grass.

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.