M
(2.1)
2. How many moles is 2.55 x 1026 atoms of Neon?
3
Vou bout 20 r.

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.

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver

Which subshell is represented by the actinides family?