What happens if an atom has a different number of protons?

What is the maximum number of electrons in level 3?

How many moles are 5.55 x 102 atoms of Mg? M2) an> NU X 02.0

What are fossils!

Heat energy is always released during what type of process?

Which statement accurately describes what happens when ice melts in terms of energy? A) The ice releases energy which causes the water molecules to have less kinetic and potential energy, changing their configuration from solid to liquid.

A balloon contains 1.00 mol helium gas at STP. What will the volume of the balloon be if the pressure increases to 2.00 atm?

If 100 mL of a gas were enclosed in a buret at 500 mm Hg, what volume would the gas occupy at 1000 mm Hg at the same temperature? P1V1=P2V2

Would Mn (HPO4) 2 be manganese (II) monohydrogen phosphate?

The fundamental frequency of a violin string is 440 hz. the frequency of its second harmonic is

How much of a 15.0M stock solution do you need to prepare 250ml of a 2.35ml hf solution?