Compounds Flashcards Preview

Abi Science 2016 > Compounds > Flashcards

Flashcards in Compounds Deck (41):
1

How do you represent a compound?

Using a chemical formula

2

What does the formula of a compound tell you?

Which elements are in a compound
The ratio of each element present

3

What is a chemical formula made up of?

Symbols of the elements in contains
A sub-script number telling you how many atoms of each element are in the compound

4

When naming a compound consisting of two elements, what suffix will you use?

-ide

5

When naming a compound, which element will come first?

Compound names go from left to right on the periodic table
Metal names will come first

6

When naming a compound that has two non-metal elements bonded together what should you do?

The left hand element will keep its name
The second element will end in ide
If the molecule has more than one atom of an element, indicate with a prefix

7

What is the prefix for 1?

mono

8

What is the prefix for 2?

di

9

What is the prefix for 3?

tri

10

What is the prefix for 4?

tetra

11

What is the prefix for 5?

penta

12

What is the prefix for 6?

hexa

13

What is the prefix for 7?

hepta

14

What is the prefix for 8?

octa

15

What must you do when you have a compound consisting of three elements?

Instead of ide, use ate
Do not use prefixes

16

What are metals like?

They are normally shiny, can be punted into a shape, drawn into threads and are good conductors of electricity and heat

17

What are non-metals like?

They are dull, brittle and are bad conductors of heat and electricity.

18

What are semi-metals like?

They share properties of both metals and non-metals

19

Where are the metals on the periodic table?

They are in the middle of the bold line

20

Where are the semi-metals on the periodic table?

They are on both sides of the bold zig-zag line.

21

What are periods?

They are the horizontal rows on the periodic table.

22

What are groups?

They are the vertical columns on a periodic table

23

What is the name for group one?

Alkali metals

24

What is the name for group two?

Alkali earth metals

25

What is the name for group seventeen?

Halogens

26

What is the name for group 18?

Noble gases

27

What is the area between the bold line called?

Transition metals

28

What are alkali metals?

They are extremely reactive
Most of them will react with water and explode on contact
They are one of the most unstable group on the periodic table

29

What are the halogens?

They are diatomic

30

What is diatomic?

Diatomic is when a single atom of that element will never be found on its own, it will always come in pairs. Hydrogen, Oxygen and Nitrogen are also diatomic

31

What are the noble gases?

They are the opposite of diatomic elements
They will not bond with anything
They are the most stable elements

32

What are transition metals?

They are elements that can have 1-4 electrons in their outermost layer.

33

How many electrons does Group 13 have in its outermost layer?

3

34

How many electrons does Group 14 have in its outermost layer?

4

35

How many electrons does Group 15 have in its outermost layer?

5

36

How many electrons does Group 16 have in its outermost layer?

6

37

How many electrons does Group 17 have in its outermost layer?

7

38

How many electrons does Group 18 have in its outermost layer?

8

39

Who created the periodic table?

Dmitri Mendeleev

40

What is the most malleable of metals?

Gold

41

What is the definition of a compound?

A compound is a molecule that is made up of two or more elements that is chemically bonded together in a fixed ratio.