Chapter 1.2 Atomic Theory Flashcards Preview

National 5 Chemistry > Chapter 1.2 Atomic Theory > Flashcards

Flashcards in Chapter 1.2 Atomic Theory Deck (8)
1

The atomic number of an element tells you

how many protons an atom of that element has.

2

The mass number of an element is equal to the

number of protons plus neutorns

3

Isotopes are atoms with the same atomic number but

different mass numbers

4

An ion is a charged particle formed when an atom

gains or loses electrons

5

Metal atoms lose electrons to form

positive ions

6

non-metal atoms gain electrons to from

negative ions

7

Different atoms of the same element have identical

atomic numbers

8

Isotopes of an element have different

mass numbers