Atomic Mass
Atomic mass of Carbon
12
Atomic Number
The number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.
What element is period 4 and row 1
Potassium
Symbol of Mendelevium
Md
Period 5, Group 16
Tellurium Te
Atomic mass of Xenon
131
Proton
A molecule with a positive charge.
What element is period 2 and row 6
Sulfur
Symbol of Nobelium
No
Group 13, period 5
indium
Atomic mass of Gold
197
Molecule
A group of atoms bonded together.
What element is period 6 and row 11
Gold
Symbol of Radon
Rn
Name one element that has similar characteristics as Astatine (At) on the periodic Table
Iodine, Bromine, Chlorine, and/or Florine
Atomic mass of Gallium
70
Atom
The basic unit of of a chemical element.
What element is period 7 and row 2
Radium
Symbol of Thallium
Tl
Number of Neutrons for Iridium (Ir)
115
Atomic mass of Tin
119
How many elements are in period 7?
18
What element is period 5 row 14
Tin
Symbol of Holmium
Ho
Number of Valence electrons for every element in group 15
Five (5)