Atoms
The positive particle in an atom
proton
The columns of the periodic table
groups or families
Which two elements are similar based on location:
Na, Ca, Sc, Cs
Na, Cs
The formula to calculate neutrons
Mass - Atomic number = Neutrons
M-A=N
Malleable, shiny luster, high melting and boiling points
metals
The neutral particle of an atom
neutron
periods
Which two elements are similar based on location:
Fe, Co, Rh, Ru
Fe, Ru
The number of protons in K
19
can't conduct electricity, can be a solid, liquid, or gas, brittle
nonmetals
electron
Atomic number and atomic mass trend as you move from left to right in a period
They increase as you move across the period
Which two elements are similar based on location:
C, Si, B, N
C, Si
The number of neutrons in Co
59-27=32 neutrons
metalloids
The particles found in the nucleus
protons and neutrons
The reason elements are in groups
They share similar properties
Which two elements are similar based on location:
Ag, Cd, Pd, Ni
Pd, Ni
The number of electrons in F
9
semiconductor, varying melting and boiling points, tend to look like metals
metalloid
nucleus
Most reactive element location
Left and down on the periodic table
Which two elements are similar based on location:
He, F, Ne, H
He, Ne
Atomic mass of Au
197
metals