The only subatomic particle NOT inside the nucleus.
What is an electron?
The atomic number tells you what about an element?
The number of protons (which is equal to the number of electrons, when its neutral)
An atom with more electrons than protons, causing it to have a negative net charge.
What is an anion?
Protons, neutrons, & electrons
What is a subatomic particle?
Draw an arrow showing the direction of a group.
⬆️ or ⬇️
Has a mass of 1 amu, found in the nucleus, and has a +1 charge
What is a proton
The periodic table are made up of three classes - but most of the periodic table are only 1 class.
What are metals?
The net charge of an atom with 5 protons, 6 neutrons, and 6 electrons.
What is -1?
Remember to compare the amount of protons and electrons to find the net charge.
A horizontal row on the Periodic Table
What is a period?
Draw a neutral atom of Helium.
2 protons, 2 electrons, 2 neutrons
In a neutral atom, there are an equal number of these subatomic particles
What are protons and electrons?
The element in period 6 and Group 15.
What is Bismuth (Bi).
If any neutral atom loses 1 electron, it will have this net charge.
What is +1?
An atom with an unequal amount of protons and electrons, resulting in a net charge.
What is an ion?
Draw an element key for the atom shown:
Oxygen, (O), Atomic Number 8, Atomic Mass 15
The amount of protons and neutrons
What is the mass number?
Elements in the same __________ have similar properties.
What are groups?
Are these ions or isotopes?

Isotopes
Atoms of the same element, but with a different mass number.
What are isotopes?
Draw an isotope for this atom:
Or any atom with 4 protons, 4 electrons, and NOT 4 neutrons
2 atoms each have 4 neutrons & 4 electrons, but one atom has 3 protons and the other has 4 protons - these are called ___________.
different elements
As you move from left to right ➡️, this trend exists on the periodic table.
What is:
- the atomic number increases
- metals ➡️ metalloids ➡️ nonmetals
TRUE ✅ OR FALSE ❌:
These are ions of the same element:
An atom with less electrons than protons.
What is a cation?
Draw a cation for the atom shown: 
What is:
Or anything with 6 protons, 6 neutrons and LESS than 6 electrons