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Periodic Table
Periodic Trends
Element Identification category
Electron Configuration (Bonus)
100
What number tells you the number of protons and electrons?
Atomic Number
100

What is the center of an atom called?

Nucleus

100
What element has the symbol Xe?
Xenon
100
How many electrons fit on the first energy level?
2
200
How do you figure out the number of neutrons?
Subtract the atomic number from the atomic mass
200
What particle has a positive charge?
Proton
200
What element has 17 electrons?
Chlorine
200
How many electrons fit on the third energy level?
18
300
How do you find an element's atomic mass?
Add the number of neutrons and the number of protons together
300
What particle has no charge?
Neutron
300
What element's symbol is K?
Potassium
300
Figure out the number of electrons on each energy level for NEON
2) 8)
400
What particle has a negative charge?
Electron
400
What element is a gas with 22 neutrons?
Argon
400
Figure out the number of electrons for each level for IRON
2) 8) 16)
500
What does the term 'valence electrons' mean? (2 things)
number of electrons on outermost shell, tells how reactive an element is
500

What subatomic particle is not inside the nucleus?

Electrons

500
What element is a sold named after a state with 253 neutrons?
Californium
500
What is an electron cloud model?
The electrons around the nucleus spinning so fast it looks like a cloud