Periodic Table- unit 1 Flashcards by Mr Hirst | Brainscape

Q

What is the law of octave?

A

Every 8 elements the properties repeat themselves

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Q

What are groups in the periodic table?

A

Similar elements

Increasing in mass as you go down

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Q

What are periods in the periodic table?

A

Other name for rows

Increasing mass number and proton number

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Q

How did Mendeleev organize the periodic table?

A

Increased atomic mass

placed in groups with similar properties

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Q

What did Mendeleev find out?

A

New elements

In spaces left in the periodic table

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Q

How is the modern periodic table set?

A

In atomic number order

Each new row is a extra shell

Each group has the same number of outer electrons

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Q

How many outer electrons does each group have?

A

Group number same as outer shell

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Q

4 properties of transition metals

A

In the middle of PT

Form colored ions

Good catalysts

High MP and BP

Conduct Electricity

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