Unit 3 - Periodic Table Flashcards Preview

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Flashcards in Unit 3 - Periodic Table Deck (5)
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1
Q

What is a group in the periodic table

A

A group is a vertical column of elements that have similar chemical properties since they have the same number of electrons in the outer shell

2
Q

What is a period in the periodic table

A

A period is a horizontal line of elements where the atomic numbers increase from left to right

3
Q

How do we separate metals and non-metals (conductivity)

A

Metals conduct electricity (free electrons)

Non-metals do not conduct electricity (they do if ionic and dissolved in water)

4
Q

How do we separate metals and non-metals (acid-base character of oxides)

A

Metal oxides dissolve to form alkalis

Non-metal oxides dissolve to form acids

5
Q

What is the periodic table

A

An arrangement of elements in order of atomic number