C2.1 Bonding Flashcards Preview

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Flashcards in C2.1 Bonding Deck (14):
1

What happens to electrons during covalent bonding?

Electrons are shared

2

What happens to electrons during ionic bonding?

Electrons are transferred- metal to non-metal

3

How are ions formed?

In ionic bonding, the atoms involved lose or gain electrons to form charged particles called ions

4

What are ions electron structure like?

Like the noble gases- a stable electronic structure

5

Which types of bonding have high melting and boiling points?

Ionic and metallic

6

Which bonding has low melting and boiling points?

Covalent

7

What does covalent bonding result in?

Outer electron shells overlapping

8

When can ionic compounds conduct electricity?

When molten or dissolved in water as their ions can become mobile and can carry charge through the liquid

9

When are covalent bounds formed?

When atoms of non-metals share pairs of electrons with each other

10

Why do simple molecules (covalent substances) have low boiling and melting points?

They have weak intermolecular forces

11

Why can't simple molecules conduct electricity?

They have no overall charge, so they can't carry electrical charge

12

Explain metallic bonding

Positively charges metal ions, which are held together by electrons from the outermost shell of each metal atom

13

What are electrons in the 'sea' of free moving electrons called?

Delocalised electrons

14

What do delocalised electrons do?

Enable electricity and thermal energy to be transferred through a metal easily