What element has an atomic mass of 69.723
What is Gallium
What elements are touching the "staircase" on the periodic table
Metalloids
Found in the nucleus of an atom.
Protons + neutrons
How many valence electrons does carbon have?

4 -Four
True or False: The periodic table contains only elements found in nature.
False
This number stands for the number of protons.
What is the atomic number
The majority of the periodic table is...
metals
Neutrons and protons make up the nucleus and equal _.
What is the atomic mass?
Oxygen has _ number of valance electrons.
What is 6 (six)?
How many periods are on the periodic table?
7
The column going up and down of the periodic table
What is the group
These types of elements are malleable and ductile
metals
Determines the atomic number
What are protons?
How many valence electrons does Phosphorus Have?
5
How many valence electrons does Krypton have?
8
What element is found on Group 4 period 5?
Ziconium
This element has 8 protons and needed for life.
What is oxygen?
The only element with no neutrons
What is hydrogen?
Elements in Group 1 have this many valence electrons.
What is 1?
Chlorine, Bromine, and Iodine have the same chemical properties because they have the same
valence electrons
These elements do not conduct heat or electricity.
What are non-metals?
This holds together the atom.
What is a positive charge of protons attracted to the negative charge of the electrons?
Which is not a non-metal from the following: Boron, Iron, Hydrogen, Argon?
Iron
These elements have a full (complete) valence shell.
What are Noble Gasses (Group 18)?
Group number and period number that Copper (Cu) is in.
What is group 11, period 4?