Periodic Table 1
Periodic Table 2
Periodic Table 3
Periodic Table 4
Periodic Table 5
100
The electrons in the outer energy level
Valence electrons
100
Subatomic Particle with a negative charge
Electron
100
The atomic number is equal to this
Number of protons
100
What is the formula for finding the neutrons of an atom?
Atomic mass - Atomic number
100
A subatomic particle with no charge.
Neutron
200
The location of protons and neutrons.
The nucleus
200
Reactivity of an atom with a full outer energy orbital.
Nonreactive or not reactive at all
200
The number of protons in an atom of calcium.
20
200
Arsenic (As) has 33 of these.
Protons (and electrons)
200
The location of electrons.
Electron cloud/electron shells
300
Columns (up and down) on a periodic table
Groups
300
The maximum number of electrons the 2nd orbital, or energy shell, can hold.
8
300
Rows on the periodic table (side to side)
Periods
300
The number of neutrons in an atom of neon with a mass number of 21
11
300
Elements in the same group share this.
Same number of valence electrons (outer shell electrons)
400
The maximum number of electrons the 1st orbital, or energy shell, can hold.
2
400
Subatomic particle with a positive charge
Proton
400
The majority of the elements on the periodic table are this.
Metals
400
The amount of energy orbitals/shells that Lithium has.
2
400
The most reactive groups on the periodic table.
1, 7
500
The mass number of this atom of oxygen
16
500
This group is not reactive at all.
Group 18
500
Elements in group 1 have only 1 valence electron and which makes them...
Highly reactive
500
The subatomic particle with no mass
Electron
500
The amount of valence electrons that chlorine has.
7