Electrons and the Periodic Table - Revision Flashcards

1
Q

How do you work out the electronic configuration of the first 20 elements on the periodic table?

A

The group number represents the number of electrons in the outer shell The period represents the number of shells the element has

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2
Q

How do you work out how many electrons are in the outer shell of an element with the periodic table?

A

The group represents the number of electrons in the outer shell

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3
Q

What are groups?

A

Groups are columns in the periodic table

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4
Q

What are periods?

A

Periods are rows in the periodic table

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5
Q

How do you classify a metal on the basis of their electrical conductivity and the acid-base character of their oxides?

A

Metals are all conductors of electricity Metals from metal-oxides, which are alkaline

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6
Q

How do you classify a non-metal on the basis of their electrical conductivity and the acid-base character of their oxides?

A

Non-metals don’t conduct electricity Non-metals for non-metal oxides, which are acidic

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7
Q

Why do elements in the same group of the periodic table have similar chemical properties?

A

Elements in the same group have the same number of electrons in their outer shell; therefore, they will react and bond in a similar way. For example, all elements in group one form +1 ions as they all lose an electron to become stable (full outer shell)

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8
Q

Do noble gases react?

A

No, they are inert. This means that they do not react

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9
Q

Why are noble gases stable?

A

They are stable because they do not have to lose or gain an electron

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10
Q

Where are metals and non-metals in the periodic table?

A

Metals are on the left of the line and non-metals are on the right.

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