chem unit 1

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Atoms in an element are...?
all the same type
1 of 5
An atom consists of...?
a nucleus containing positive protons and neutral neutrons and negative electrons arranged in energy levels
2 of 5
What is the correct chemical symbol for sodium?
Na
3 of 5
What are the groups in the periodic table?
collection of elements with the same number of electrons in their highest energy level
4 of 5
what is the difference between the atomic number and the atomic mass number
atomic number: the number of proton
5 of 5

Other cards in this set

Card 2

Front

An atom consists of...?

Back

a nucleus containing positive protons and neutral neutrons and negative electrons arranged in energy levels

Card 3

Front

What is the correct chemical symbol for sodium?

Back

Preview of the front of card 3

Card 4

Front

What are the groups in the periodic table?

Back

Preview of the front of card 4

Card 5

Front

what is the difference between the atomic number and the atomic mass number

Back

Preview of the front of card 5

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