Show:
Periodic Table
Periodic Trends
Element Identification
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
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 an proton number of Ar.

18

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 isotope is used to power heart pacemakers?

Plutonium-238 

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

Which isotope has a short half life of 6 hours and is used in medical imaging?

Tc, Technetium-99

400

Figure out the electron configuration for Na

2.8.1

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 symbol K?

Potassium

500

In what year was the concept of the item first created?

400 B.C.