Element
Misc
Types of Elements
Valence
Periodic Table
100
What element has an atomic mass of 69.723
What is Gallium
100
What elements are touching the "staircase" on the periodic table
Metalloids
100
How do you find the mass number of an atom?
Protons + neutrons
100
What is the dot structure for C
100
The creator of the Periodic Table
Who is Dmitri Mendeleev
200
This number stands for the number of protons.
What is the atomic number
200
The majority of the periodic table is...
metals
200
Neutrons and protons make up the nucleus and....
What is the atomic mass
200
O stands for
What is Oxygen
200
How many periods are on the periodic table?
7
300
The column going up and down of the periodic table
What is the group
300
This type of element is malleable and ductile
metals
300
It controls the atomic number
What are protons
300
How many valence electrons does Phosphorus Have?
5
300
How many valence electrons does Krypton have?
8
400
What element is found on Group 4 period 5?
Ziconium
400
When you have +8, and -2 you have
What is +6
400
Why are halogens so reactive?
They have 7 valence electrons
400
An alkali metal has this many valence electrons
What is 1
400
Chlorine, Bromine, and Iodine have the same chemical properties because they have the same
valence electrons
500
What number is not on the periodic table
Mass Number
500
There are more protons than electrons
What is a positive charge
500
Which compound is not a non-metal from the following: Boron, Iron, Hydrogen, Argon
Iron
500
If an atom gains two electrons, what is its charge?
-2
500
What is the name for group 17 (or 7A) of the periodic table?
Halogens