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Periodic Table
Periodic Trends
Element Identification
Element Identification 2
Electron Configuration
100
What number tells you the number of protons and electrons?
Atomic Number
100
What is the 'brain' of the atom?
Nucleus
100
What is the name of element number 1?
Hydrogen
100

What element has the symbol Na?

Sodium 

100
How many electrons fit on the first energy level?
2
200

How do you calculate the number of neutrons?

SUBTRACT! (atomic mass - atomic number)

200
What particle has a positive charge?
Proton
200
What element has an atomic mass of 238.
U, Uranium
200
What element has 17 electrons?
Chlorine
200
How many electrons fit on the third energy level?
18
300

How do you calculate an element's atomic mass?

ADD the number of neutrons and the number of protons together (P + N)

300
What particle has no charge?
Neutron
300

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

Calcium
300
What element's symbol is K?
Potassium
300
Figure out the number of electrons on each energy level for NEON
2) 8)
400
How many liquids are on the periodic table?
2
400
What particle has a negative charge?
Electron
400

Name the element that has 26 as its atomic number?

Fe (Iron)

400
What element is a gas with 22 neutrons?
Argon
400

Which Group of elements have 2 valence electrons

Group 2: Alkaline Earth Metals

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 has the elemental symbol Cl?

Chlorine
500

What element has a rounded atomic mass of 27?

Al (Aluminum)

500
What is an electron cloud model?
The electrons around the nucleus spinning so fast it looks like a cloud