Question

1. where are the most reactive elements?

a. groups 1a and 2a
b. groups 1a and 7a
c. groups 1a and 8a
d. groups 7a and 8a

1. where are the least reactive elements?

a. the transition metals
b. the alkali metals
c. the inner transition metals
d. the noble gases
vocabulary to know for bonding, water and ph:
valence electrons ionic bond covalent bond
cohesion adhesion surface tension
solvent solute heat capacity
nonpolar polar hydrogen bond
acid base neutral polar molecule capillary action ions ph

1. the bond between water molecules is a ______ bond.

a. ionic b. polar covalent c. nonpolar covalent d. hydrogen

1. a solution with a ph of 7 is ______ times more acidic than a solution with a ph of 10.

a. 3 b. 100 c. 1000 d. 9

1. the type of chemical bond formed when electrons are shared between atoms is a ______ bond.
2. when an atom loses an electron, it becomes a ______ ion.
3. when an atom gains an electron, it becomes a ______ ion.
4. if an atom of oxygen gains valence electrons it will have a ______ charge.
5. the attraction between a positive ion and a negative ion results in a(n) ______ bond being formed.
6. a covalent bond in which there is an unequal attraction for the shared electrons is

a. nonpolar b. polar c. ionic d. dipolar

1. ionic bonds are formed between a

a. nonmetal and a nonmetal c. metal and a nonmetal
b. metal and a metalloid d. metal and a metal

Explanation:

Answer:

(20) b. Groups 1A and 7A
(21) d. the noble gases
(22) d. hydrogen
(23) c. 1000
(24) covalent
(25) positive
(26) negative
(27) negative
(28) ionic
(29) b. polar
(30) c. metal and a nonmetal