Which statement is true?

a
Atoms can be changed
b
All atom are not stable
c
Atoms can never be changed
d
Both A and B

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.

Describe the interaction that occurs between two objects with the same electrical charge.

What is the polyatamic ion of borate