Atoms
This is the smallest particle of an element that still keeps its properties
What is an atom?
This matter that cannot be broken down down into a simpler substance.
Element
What is a proton?
An energy level is where what particle buzzes around the atom
What is an electron?
A horizontal row (left to right) on the periodic table.
Period
A group of one kind of atom is called this
What is an element?
A table of all chemical elements in order of atomic number
Periodic table
This type of number is the amount of protons an atom has
What is an atomic number?
This type of electron spends its time on the very outer shell of an atom
What is a valence electron?
A vertical column (top to bottom) on the periodic table
Group
This is the center of the atom
What is the nucleus?
Give three examples of elements.
Answers will vary.
This number is the amount of nucleons an atom has
What is the mass number?
This atom doesn't have the normal number of electrons
What is an ion?
The representation of a chemical reaction, using symbols
Chemical equation
Nucleons contain these two particles
What is protons and neutrons?
This profession would mix chemicals together to make new things
What is an alchemist?
This type of particle has no charge
What is a neutron?
When atoms share electrons equally it's known as
What is covalent bonding?
How are atomic numbers ordered on the periodic table?
They increase from left to right
This type of particle contains a negative charge
What is an electron?
H20 is this
What is a compound?
When an atom loses electrons
What is a cation?
This rule states that when an atom has eight electrons in its outer shell is becomes stable
What is the octet rule?
What can the periodic table help scientists do?
Predict which elements will react with each other.