Atomic Structure

Question 1

What are atoms and what do they do

Answer 1

Basic building blocks of matter. Define structure of elements.

Question 2

What are elements

Answer 2

Pure substances of only 1 atom type

Question 3

How can elements be joined

Answer 3

Chemically: molecule
Mixed: mixture

Question 4

What are molecules

Answer 4

Groups of atoms chemically bonded together. You can get of the same element or different elements.

Question 5

What are compounds

Answer 5

Molecules consisting of different elements

Question 6

What are atoms made up of

Answer 6

Sub atomic particles:
Protons
Neutrons
Electrons

Question 7

What unit are atoms measured in

Answer 7

Atomic mass

Question 8

What is the mass of a proton/neutron

Answer 8

1(if charges=, atoms are electrically neutral)

Question 9

Whose periodic do we use today

Answer 9

Dmitri mendelev

Question 10

What is Eva-aluminium known as today?

Answer 10

Gallium

Question 11

How were the elements arranged in the periodic table?

Answer 11

By atomic mass, properties, protons in nucleus

Question 12

How was technetium isolated

Answer 12

Radiation

Question 13

What is room temperature

Answer 13

25ºc

Question 14

Give general properties of metals

Answer 14

Shiny
Solid at room temp
High melting point
Conduct electricity/heat
Malleable+ductile+sonorous (ductile=wires)

Question 15

Give general properties of non-metals

Answer 15

Can be solid liquid or gas at room temp
Dull
Poor conductors
Brittle

Question 16

What are isotopes

Answer 16

Atoms of the same element with different neutron number

Question 17

What is the volume of one molecule of any gas at room temp

Answer 17

24 dm 3

Question 18

What happens if an atom gains an electron

Answer 18

It becomes negatively charged (anion)

Question 19

What happens if an atom looses an electron

Answer 19

It becomes positively charged (cation)