Structure and Bonding Flashcards Preview

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Flashcards in Structure and Bonding Deck (29)
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0
Q

Covalent bonding

A

Sharing electrons

1
Q

When elements react together what do they from

A

They form compounds by gaining or losing electrons or by sharing electrons

2
Q

Metal atoms lose or gain

A

Lose electrons to form positive ions because they have lost weight so they are happy

3
Q

Non metals lose or gain

A

Non metals gain electrons to from negative ions as they have gained weight and are not happy

4
Q

What’s an ion

A

Electronically charged atom, a-e-i-o-u remember

5
Q

How many electrons do group 1 have in their outer shell

A

1

6
Q

Symbol for sodium chloride

A

NaCl

7
Q

Ionic bonding what is it between

A

Metal and non metal

8
Q

Covalent bonding what is it between

A

Non metal and a non metal

9
Q

What is ionic bonding

A

Ionic compounds held together by strong forces between the oppositely charged ions

10
Q

Compounds

A

Two or more elements reacting together

11
Q

What do the ions form in ionic bonding

A

Giant structure or lattice

12
Q

What do all ionic commands have

A

Giant structures

13
Q

How can we represent atoms and ions involved in forming ionic bonds

A

Dot and cross diagrams

14
Q

Charges on on the ions in an ionic compound…

A

Always cancel each other out

15
Q

Covalent bonding

A

Two atoms share a pair of electrons sharing is caring

16
Q

Atoms of non metals need to…

A

Gain electrons to have stable electronic structures

17
Q

Atoms of elements in group 7 need to…

A

Gain one electron form a single covalent bond

18
Q

Many substances containing covalent bonds consist of…

A

Simple molecules

19
Q

In covalent some have giant covalent structures, give an example

A

Carbon

20
Q

What can giant covalent structures be called

A

Macromolecules

21
Q

Only use the word molecule when doing what

A

Describing substances that are covalently bonded

22
Q

What are th atoms like in a metallic element

A

All the same size

23
Q

What do metals form

A

Giant structures where atoms arranged the same

24
Q

Delocalised electron

A

Electrons in outer shell detach

25
Q

Why do elements in group 1 form ions with a single positive charge

A

As they loose one electron from outer shell to become stable

26
Q

Why do elements in group 7 form ions with a single negative charge

A

As they gain one electron to become stable

27
Q

Molecules

A

Group of atoms bonded together

28
Q

Why do ionic compounds have giant structures

A

Strong intermolecular forces so they can comply with, diamond being one with one carbon and three hydrogen