Find Number of protons, neutrons and electrons in next atoms: a.) Fe p: n: e:

b.) F p: n: e:

c.) 21 ? p: n: e:

d.) 11? p: n: e:

Gymnast always perform on padded mats. how does the mats protect the gymnast

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 statement describes james chadwick’s discovery.