Atoms
An electron has a _______ charge that orbits the ________. It is the ______ part.
Negative
Nucleus
Smallest
Elements contain __ type of atom and is based on its _______-_______.
1
atomic #
On the periodic table there is the _________ # and mass.
atomic
Nuetrons are ______ charged inside the _______
Nuetrally
Nucleus
Elements ___ be broken down and it is a molecule not a _____.
Cant
Compound
The mass is the number of ________ and ______.
Protons and neutrons
Atomic mass = Protons + ___________
Neutrons
Molecules are held together by ___ or more atoms.
They can be the same or ______ atoms. Some molecules are compunds but, not ___.
2
different
all
There are __ rows of elements. They have the same ______ for their electrons
7
orbitals
The nucleus is in the _____ of the atom. It is __% of the atoms ____.
center
99
mass
Molecules have a _____ bond.
Chemical
There are __ columns
18
Protons are ________ charged and are in the _______.
It gives the atom its #= ____ __
Posotively
Nucleus
Atomic #
Compunds are _____ or more different elements combined to make a _____. Compounds are ________ but not all molecules are ______.
2
substance
Molecules
Compounds
The elements in the columns have similar _____ and ____ similarly.
properties
react