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Question 1

What increases as it goes down group 1?

Answer 1

reactivity

Question 2

What types of properties do transition metals have?

Answer 2

typical metal properties (eg. malleable, ductile, good conductors of heat and electricity, shiny)

Question 3

What are transition metals often used as in a reaction?

Answer 3

catalysts

Question 4

What 2 things can transition metals often form?

Answer 4

ions, coloured compounds

Question 5

What are 3 properties of alkali metals?

Answer 5

soft, reactive, low melting point

Question 6

What does bromine form?

Answer 6

dark red vapour

Question 7

What does iodine form?

Answer 7

shiny, black crystals

Question 8

What does chlorine form?

Answer 8

green

Question 9

lithium+iodine→

Answer 9

lithium iodide

Question 10

potassium+bromine→

Answer 10

potassium bromide

Question 11

What does metal oxide form?

Answer 11

A tarnish

Question 12

When sodium reacts with water, what does it do?

Answer 12

floats as a molten ball of metal

Question 13

What does potassium do when it reacts with water?

Answer 13

floats, making a lilac foam

Question 14

What happens to lithium when it reacts with water?

Answer 14

floats, forming LiOH

Question 15

What gas is made when an alkali metal reacts with water?

Answer 15

hydrogen

Question 16

What do noble gases all form at room temperature?

Answer 16

colourless gases

Question 17

What is common between noble gases?

Answer 17

They are all very unreactive.

Question 18

Atoms with incomplete _____ are unstable.

Answer 18

outer electron shells

Question 19

How do atoms obtain a full outer electron shell and become stable?

Answer 19

by either gaining or losing electrons

Question 20

An unequal number of protons and electrons makes what?

Answer 20

ions

Question 21

An atom that loses electrons is a ________ ion.

Answer 21

positive

Question 22

An atom that gains an electron is a ________ ion.

Answer 22

negative

Question 23

Metal atoms form positive/negative ions.

Answer 23

positive

Question 24

Non-metal atoms form positive/negative ions.

Answer 24

negative

Question 25

Who noticed sets of three elements with similar properties?

Answer 25

Dobereiner

Question 26

When were Dobereiner triads discovered?

Answer 26

1829

Question 27

Who placed elements in order of atomic weight?

Answer 27

Newlands

Question 28

When was the 'law of octaves' discovered?

Answer 28

1865

Question 29

Who put the elements in order of atomic weight but swapped some around?

Answer 29

Dmitri Mendeleev

Question 30

When were the elements put in order of atomic weight with some swapped around?

Answer 30

1869

Question 31

Who arranged the elements in order of atomic weights?

Answer 31

John Dalton

Question 32

When were elements arranged in order of atomic weights?

Answer 32

1808-1810

Question 33

Who suggested that each element contained identical atoms?

Answer 33

John Dalton

Question 34

Who reintroduced the idea that everything was made of atoms?

Answer 34

John Dalton

Question 35

Who said that atoms are solid spheres of matter which can not be split?

Answer 35

John Dalton

Question 36

Who discovered electrons?

Answer 36

JJ Thomson

Question 36

Who suggested that an atom is mostly empty space?

Answer 36

Rutherford

Question 36

Who suggested that an atom is a positively charged sphere with negative electrons distributed throughout it?

Answer 36

JJ Thomson

Question 37

Who made the plum pudding model?

Answer 37

JJ Thomson

Question 38

Who suggested that an atom has most of its mass in a tiny central nucleus?

Answer 38

Rutherford

Question 39

Who suggested that electrons orbit the nucleus at specific distances?

Answer 39

Neils Bohr