Question 1(Multiple Choice Worth 2 points) (04.05 LC)

What does the atomic mass of an atom tell us?

How much the atom weighs
The number of electrons in the atom
Which row the element is in on the periodic table
The number of energy levels in the atom

Aprisoner is forced to go into one of three rooms, but he can choose which room. the first room is ablaze with fire. the second one is rigged with explosives that will go off as soon as he enters. the third contains a pair of lions who haven't eaten in years. which room should he choose to survive?