Show:
Atoms
Bonding
Changes
States of Matter
Periodic Table
100
This is the name for the center of an atom.
What is the nucleus?
100
Ionic bonds form between these two types of elements.
What is a nonmetal and a metal?
100
Rust forming on metal is an example of this type of change.
What is a chemical change?
100
This is the most compact form of matter.
What is a solid?
100
This is what you call the number above the symbol of each element on the periodic table.
What is atomic number?
200
The negatively charged subatomic particle.
What is an electron?
200
These electrons are in the outer-most electron shell and are responsible for forming bonds.
What is valence electrons?
200
This is the law that states that matter can never be created or destroyed in any chemical or physical change.
What is the law of conservation of mass?
200
Changing from liquid to solid water is considered what type of change?
What is a physical change?
200
This is the total number of protons and neutrons in an element shown on the periodic table?
What is atomic mass?
300
This model of an atom has the electrons circling the nucleus in cloud-like formations.
What is Bohr's model of the atom?
300
This is a neutral groups of atoms joined together by a covalent bond.
What is a molecule?
300
This is the type of change that occurs when a cake is heated and baked in an oven.
What is a chemical change?
300
The state of matter where molecules are moving quickly and are farthest apart from one another.
What is gas?
300
The number of groups on the periodic table.
What is 18?
400
These subatomic particles are located in the nucleus.
What is protons and electrons?
400
This type of bond forms when two atoms share electrons.
What is a covalent bond?
400
This type of change can be observed or measured without changing.
What is physical change?
400
This is the state of matter where molecules are moving more quickly, but still have not reached their highest energy yet.
What is a liquid?
400
Looking at the periodic table, this is how you find the number of neutrons in an atom.
What is atomic mass (rounded) - atomic number?
500
This is the name for atoms with the same number of protons and a different number of neutrons.
What is isotopes?
500
This forms when 2 atoms share 2 pairs of electrons (4 electrons total).
What is a double bond?
500
Precipitates and flames forming are evidence of what type of change?
What is chemical change?
500
The two parts (before and after the reaction) of a chemical equation are called this?
What is products and reactants?
500
This is how many periods are on the periodic table.
What is 7?