Flashcard decks

Ions & Covalent Bonds

27 flashcardsby Rohind

Study these flashcardsFree · spaced repetition · iPhone, Android, Mac & web

All cards

1

Ionisation

Gaining or losing electrons

2

Ion

an atom or molecule that has gained or lost electrons

3

Cation

Positive ion (lost electrons)

4

Anion

Negative ion (gained electrons)

5

Neutral atom

Same protons & electrons

6

Gain electrons

Becomes negative

7

Lose electrons

Becomes positive

8

Oxide charge

-2

9

Calcium charge

+2

10

Ionic charge

Protons − electrons

11

Ionic bond

Opposite ions attract

12

High melting (ionic)

Strong bonds

13

Polyatomic ion

Many atoms, 1 charge

14

Example polyatomic

OH⁻

15

Covalent bond

Share electrons

16

What substances usually are covalent?

Non-metals

17

Why covalent?

Full shell

18

Single bond

Share 1 pair

19

Double bond

Share 2 pairs

20

Triple bond

Share 3 pairs

21

Single bond example

H₂

22

Double bond example

O₂

23

Triple bond example

N₂

24

Ionic vs covalent

Transfer vs share

25

Covalent state

Gas or soft solid

26

Covalent conduct?

No

27

Covalent strength

Weak forces

Study all 27 cards for free