Subatomic Particles
Has a positive charge, found in the nucleus, has a mass of 1 amu
Protons (+)
A=P=E stands for
Atomic number=Protons=Neutrons
The 18 up or down columns on the Period Table
Groups/ Families
True or False:
The Periodic Table is organized by increasing atomic number and mass
True
Share both metallic and non-metallic properties
Metalloids
Has a negative charge, found in the electron shells, has a negligible (small) mass
electrons (-)
To find the neutrons of an atom you must do what?
M-A=N
Mass number- Atomic number= Neutrons
The 7 side to side rows on the Periodic Table
Periods
Metalloids are found on the _____________
Zig-Zag Line
Metals
has no charge (neutral), is found in the nucleus, and has a mass of 1 amu
neutrons ()
Find the number of neutrons in an atom of Aluminum.
14 Neutrons
M- A=N
Elements in these share properties because they have the same number of valence electrons
Groups/Families/Columns
Metals are found on the _____________ side of the PT while non-metals are found on the ____________ side of the PT
Left
Right
Usually brittle, not good conductors of heat or electricity, not easily molded
Add these two subatomic particles together to find an element's atomic mass
Protons (+) and Neutrons ()
How do you show the number of protons and neutrons on a Bohr Model for an atom of Aluminum?
Write 13P and 14N in the nucleus
Periods/Rows
Elements found in the same _____________ have the same number of _________________ .
Group/Family
Valence Electrons
Potassium, Lithium, Silver, Calcium, and Francium are all
Metals
Protons(+) and Electrons (-)
Where would the electrons go when drawing a Bohr Model for Aluminum?
The 1st shell holds 2 electrons, the 2nd shell holds 8 electrons, the 3rd shell holds the remaining 3 electrons.
What element is located in group 2, period 4
Calcium
Elements in the same ________________ have the same number of ______________
Periods
Electrons shells
The only non-metal on the left side of the PT is
Hydrogen