If 2.01 x 10^23 atoms of an element from Group IA of the periodic table has a mass of 7.675 grams, this element is most likely:
a. Li.
b. Na.
c. K.
d. Rb.
e. Cs.

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

Which buffer would be better able to hold a steady ph on the addition of strong acid, buffer 1 or buffer 2? explain. buffer 1: a solution containing 0.10 m nh4cl and 1 m nh3. buffer 2: a solution containing 1 m nh4cl and 0.10 m nh3

How is the atomic number of a nucleus changed by alpha decay