What Am I?
It takes nearly 2000 of me to equal the mass of either of my subatomic partners.
What is an electron?
With a mass number of 39 and 20 neutrons in my nucleus, I am a very reactive metal.
What is potassium?
The two particles that are always found in the same number in a neutral atom.
What are protons and electrons.
Not as reactive as the metals in groups one and two, the TRANSITION METALS contain the most familiar metals like gold and silver and represents these groups.
What are Groups 3 through 12?
The smallest mass subatomic particle, but its cloud accounts for the volume of an atom.
What is the electron?