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Flashcards in Subatomic particles Deck (12):
1

What is a proton?

A positively charged particle with a mass of one

2

What is an electron?

A negatively charged particle with no mass

3

What is a neutron?

A particle with no charge and a mass of one

4

What does the number of protons in an element correspond to?

Atomic number

5

What does the number of electrons in an element correspond to?

Number of protons

6

What does the number of neutrons in an element correspond to?

Rounded atomic mass - atomic number

7

What are isotopes?

Particles with the same number of protons but a different number of neutrons (same atomic # but different mass #)

8

What is an energy level diagram?

A representation of the electron arrangement

9

In an energy level diagram, what does the number of energy levels correspond to?

Period number >>>

10

What are valence electrons?

Electrons in the outermost energy level

11

What do valence electrons correspond to?

Group number

12

Energy level diagram for oxygen

6e-
2e-
------------
8p+
O