Chemistry Final Review

Elements on the periodic table are arranged according to their

• atomic mass.

• atomic number

• mass number

• size

The atomic number of an element indicates the number of __________ in the element.

• protons

• neutrons

• electrons

• photons

The number of protons in an element is equal to the number of _________ if the atom is electrically neutral.

• protons

• neutrons

• electrons

• photons

Mendeleev arranged the elements in his periodic table in order of increasing

• atomic number

• mass number

• atomic mass

• protons

Electrons in the outermost energy level of an atom are called

• outer electrons

• space electrons

• shared electrons

• valance electrons

What is the charge on elements in Group 1A on the periodic table?

• 1+

• 2+

• 3+

• 4+

The ionic charge of atoms in Group 5A on the periodic table is

• 3+

• 3-

• 2+

• 2-

Elements in group 1 on the periodic table are known as

• noble gases

• halogens

• alkali earth metals

• alkali metals

Elements in group 7 on the periodic table are known as

• noble gases

• halogens

• alkaline earth metals

• alkali metals

Bonds that hold two atoms together by electrostatic attraction are called

• hydrogen bonds

• ionic bonds

• covalent bonds

• pi bonds