How many bonds and lone pairs are in the molecule SIH4? A.2 bonds, 2 lone pairs
B.4 bonds, 4 lone pairs
C. no bonds, 4 lone pairs
D.4 bonds, no lone pairs

Which characteristic of water it form droplets? a. low specific heat b. nonpolar structure c. high surface tension d. ability to dissolve substances

An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.

Define a is a tiny pavket of energy