Atoms
This subatomic particle carries a negative charge.
What is an electron?
Chemical symbol is H.
What is Hydrogen?
H2O
What is water?
An atom or molecule that has gained or lost one or more electrons.
What is an ion?
The molecules on the left side of the chemical equation.
What are reactants?
This subatomic particle carries a neutral charge.
What is a neutron?
Chemical symbol is Pb.
What is lead?
4CO2
What is 4 molecules of cabon dioxide?
An atom loses an electron, so it has more protons than electrons.
What is a positively charged ion?
What is a cation?
The molecules on the right side of the equation
What are products?
This subatomic particle is found in the nucleus and carries a positive charge.
What is a proton?
Chemical symbol is C.
What is Carbon?
NaCl
What is salt? What is sodium chloride?
This is a variation of a chemical element that contains a different number of neutrons in the nucleus.
What is an isotope?
When the number of atoms for each element on one side of the equation does not equal the number of atoms on the other side of the equation.
What is an unbalanced chemical equation?
These two subatomic particles make up the atomic mass of the atom.
What are protons and neutrons?
Chemical symbol is Na.
What is Sodium?
O2
What is: one molecule of oxygen (contains two atoms)?
These bonds form when atoms transfer electrons between each other, creating ions that are electrically attracted to each other and forming a bond between them.
What is an ionic bond?
The same number of atoms for each element are found on both sides of the equation.
What is a balanced chemical equation?
The number of this subatomic particle found in the nucleus of an atom determines the element and is equal to the atomic number.
What is a proton?
Chemical symbol is Hg.
What is mercury?
3O2
What is three molecules of oxygen?
(Each molecule contains 2 atoms).
Na+
What is a sodium atom that has lost an electron?
What is a positively charged sodium atom?
How many atoms of carbon and how many atoms of oxygen are in 4CO2?
4 Carbon
8 Oxygen