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Periodic Table
Periodic Trends
Element Identification
Element Identification 2
Electron Configuration
100

The number of protons an atom has will ALWAYS be equal to the number of...

Electrons

100

What particle is not inside the nucleus, but goes around it?

Electrons

100

What element has the elemental symbol Sn?

Tin

100

What element is the only metal that is a liquid at room temperature?

Mercury

100

How many electrons does Boron have?

5

200
What number tells you the number of protons and electrons?
Atomic Number
200

What is the 'center' part of the atom called?

Nucleus

200
What is the name of element number 1?
Hydrogen
200
What element has the symbol Xe?
Xenon
200

How many electrons fit on the first (inner) shell?

2

300
How do you figure out the number of neutrons?
Subtract the atomic number from the atomic mass
300
What particle has a positive charge?
Proton
300
What element has an atomic mass of 238.
U, Uranium
300
What element has 17 electrons?
Chlorine
300

How many electrons fit on the third (outer) shell?

18

400

How do you find an element's atomic mass?

Look at the bottom number on the periodic table

400
What particle has no charge?
Neutron
400

What is the name of the element with the elemental symbol Kr?

Krypton

400
What element's symbol is K?
Potassium
400

Figure out the number of electrons on each energy level for NEON

Inner shell = 2, Second shell = 8

500

Are there more metals, semimetals, or nonmetals on the periodic table?

There are more metals
500
What particle has a negative charge?
Electron
500

Which element has 17 as its atomic number?

Cl, chlorine

500
What element is a gas with 22 neutrons?
Argon
500

Figure out the number of electrons for each level for IRON

First shell= 2, Second shell= 8, third shell= 16