Classification of Matter
This is what you call anything that has mass and takes up space.
Matter
The element in air that we breathe and is essential for life.
Oxygen
What are the three main subatomic particles in an atom?
Protons, neutrons, electrons
The number at the top of each square on the periodic table is called the...
Atomic number
What is the symbol for Sodium?
Na
Matter can be classified into three main states: solid, liquid and _____.
Gas
The metal used in coins, wires, and also found in kitchen pipes.
Copper
The name of the positive particle in the nucleus.
Proton
The number at the bottom of each square on the periodic table is called the...
Atomic mass or Mass number
What is the atomic number of Gold?
79
The smallest unit of an element that still keeps its properties.
An atom
This element is found in table salt and is needed for human health.
Sodium
The particle that has no charge and is found in the nucleus.
Neutron
The rows of the periodic table are called the...
Periods
What is the name for the element with the symbol Pb?
Lead
The term for a substance made up of only one type of atom.
Element
This element makes up diamond and graphite in pencils.
Carbon
The particle found in the outer shells of an atom.
Electron
The columns of the periodic table are called the...
groups
Name three metal elements.
Copper, lead, sodium, tin, aluminium, gold, silver, iron, nickel, lithium, magnesium, etc.
Name the 2 main groups of elements on the periodic table.
Metals and Non-metals
Name two non-metals commonly found in everyday objects.
Carbon and Oxygen
How many electrons can fit into each electron shell?
2: 8: 8
The atomic number tells us the number of _______ in an atom.
Protons
Name three non-metal elements.
Oxygen, Nitrogen, Hydrogen, Helium, Carbon, Boron, Sulfur, Chlorine, Argon, Neon, etc.