Periodic Table Puzzle Crossword

What are positively charged particles of the atom?
What are negatively charged particles of an atom?
What particle of anatom has no charge?
Where are protons found?
Where are electrons found?
An _______ is an atom that has the same number of protons but a different number of neutrons as other atoms of the same element.
The ____ ______ is the total number of protons and neutrons.
What detrmines the identity of an atom?
What is an average of the masses of all naturally occuring isotopes of an element?
The electrons in the outermost energy level of an atom are called _______ _________.
Alkali Metals only have ___ valence electron?
Valence electrons determine the _____ of which an element si placed.
Lithium is a?
Is Flourine a metal or nonmetal?
A ______ loses an electron and becomes positively charged.
A _____ gains an electron and becomes negatively charged.
A row of elements is called a ______.
What are charged particles that form during chemical changes?
What is it called when 2 atoms of nonmetals bond?
What is it called when a metal reacts with a nonmetal?