Topic 7- Periodicity Flashcards Preview

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Flashcards in Topic 7- Periodicity Deck (4)
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1

What are the four blocks on the periodic table?

What are groups on the periodic table?

What is the same about elements in the same group?

What are the elements usually numbered from?

What happens to metals as you go down the group?

What happens to non-metals as you go up the group?

S-block; D-block; P-block; and F-block

Vertical column of elements

Same number of electrons in outer main shell

1-7

Metals get more reactive as go down

Non-metals more reactive as go up.

2

What are periods on the periodic table?

What is the same about elements in the same period?

What trends are there between elements in the same period?

What is the definition of atomic radii?

What happens to atomic radii across the period?

What happens to atomic radii down the group?

Horizontal rows

Electrons in same main level

Trends in physical properties

Half the distance between the centre of the pairs of atoms

Decreases across the period

Gets larger down the group.

3

What are the structures of the following elements in Period 3:

Na

Mg

Al

Si

P

S

Cl

Ar

Metallic lattice

Metallic lattice

Metallic lattice

Macro Molecular (Giant Covalent Structure)

Simple Covalent (molecular)

Simple Covalent (molecular)

Simple Covalent (molecular)

Mono-atomic.

4

What are the forces of attraction broken when the solid melts of the following Period 3 elements:

Na

Mg

Al

Si

P

S

Cl

Ar

Metallic bonds

Metallic bonds

Metallic bonds

Covalent

Covalent

Covalent

Van der Waals

Van der Waals.