Ch. 8 Study Guide Elements and Chemical Bonds

Each group in the periodic table has its own characteristic properties based on the number of

• neutrons

• valence electrons

• protons

• ions

When an atom loses an electron, it becomes a

• positive ion

• negative ion

• neutral ion

• neutral atom

An ionic bond is the attraction between

• similarly charged ions

• oppositely charged ions

• neutral ions

• neutral atoms

A chemical bond formed when two atoms share electrons is called a(n)

• ionic bond

• covalent bond

• polyatomic bond

• crystal bond

A covalent bond in which electrons are shared unequally is

• polar

• a double bond

• ionic

• polyatomic

Electrons involved in bonding between atoms are

• valence electrons

• inside the nucleus

• closest to the nucleus

• positively charged

If atoms of a halogen nonmetal (Group 17) gain one electron, the atoms then have

• no valence electrons

• 7 valence electrons

• 8 valence electrons

• 17 valence electrons

The attraction between a positive metal ion and the electrons surrounding it is a(n)

• chemical bond

• covalent bond

• ionic bond

• metallic bond

Which group of elements is the most stable?

• metals

• metalloids

• nonmetals

• noble gases

Which best describes a valence electron?

• an inner electron that participates in chemical bonding

• an outermost electron that participates in chemical bonding

• an inner electron that does not participate in chemical bonding

• an outermost electron that does not participate in chemical bonding