Atomic Structure and Periodic Table

Question 1

what did Chadwick discover?

Answer 1

neutron

Question 2

what did Bohr’s experiment show?

Answer 2

electrons are arranged in specific shells or energy levels

Question 3

what are groups in the periodic table?

Answer 3

the vertical columns

Question 4

approximately how large are atoms?

Answer 4

radius of around 0.1nm

Question 5

how large is the nucleus in comparison?

Answer 5

1/10000 of the size (1x10^-14)

Question 6

what is the relative atomic mass of an element?

Answer 6

an average value for the mass number that takes into account the different isotopes of the element

Question 7

what is an ion?

Answer 7

a charged atom which has gained or lost electrons (to get a full outer shell)

Question 8

how does the bp of group 0 elements change down the group?

Answer 8

increase

Question 9

what is a displacement reaction?

Answer 9

where a more reactive element displaces a less reactive one from a compound

Question 10

how does the reactivity of transition metals compare to group 1?

Answer 10

less reactive

Question 11

how are the ions formed by transition metals different to group 1?

Answer 11

can form ions with different charges

Question 12

what is distinctive about the compounds formed from transition metals?

Answer 12

coloured

Question 13

what can transition metals commonly be used as?

Answer 13

catalysts