the atom (unit 2)

Question 1

electrons

Answer 1

-negative charge
-“teensy weensy” mass in comparison to protons and neutrons
-determines the property of atom
- 9.11 x 10 ^-31kg

Question 2

nucleus

Answer 2

-has protons (+) and neutrons (no charge but adds mass)

Question 3

orbital shells

Answer 3

-energy levels
-electrons can only occupy specific energy levels

Question 4

emission spectrum

Answer 4

-each energy level corresponds to a different color of light
-when electrons move from one e.l to another a photon is emitted when electron loses energy

Question 5

protons

Answer 5

positive charge
1 amu
1.67 x 10^-27 kg

Question 6

neutrons

Answer 6

neutral charge
1 amu
1.67 x 10^-27kg