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Chemistry Grade 9 > Atoms > Flashcards

Flashcards in Atoms Deck (6)
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1

What are elements?

A pure substance that cannot be broken down into other substances. Elements are made of only one atom.

2

What is an atom?

Atoms make up elements. Each element has its own atoms.

3

What is the structure of an atom?

an atom is made up of a nucleus full of protons and neutrons. Surrounding the nucleus there are rings called shells. These shells are where the electrons are.

4

The atomic number of an element is the same number as...
a)electrons and neutrons
b)protons and electrons
c)neutrons

b) protons and electrons

5

What is the shell configuration?

2,8,8,2

6

How do you find the number of neutrons in a element?

Number of neutrons = mass of element - number of protons