The Periodic Table

Question 1

What is periodic table

Answer 1

The periodic table is an arrangement of elements in order of increasing atomic number.

Question 2

The word periodic is used as the p…………. of elements r………..

Answer 2

Properties , elements

Question 3

How many groups are there in a periodic table

Answer 3

8

Question 4

All elements in each group have ………………………………….

Answer 4

Similar chemical properties

Question 5

Group I

Answer 5

Alkali metals

Question 6

All elements in each group have the s…………………. Of electrons in their o………………….

Answer 6

Same number , outer shells / orbit

Question 7

Group II

Answer 7

Alkaline earth metals

Question 8

What are the elements in the middle are called

Answer 8

Transition metals

Question 9

Group VII

Answer 9

Halogens

Question 10

Group VIII or 0

Answer 10

Noble gases

Question 11

How many periods are there in a periodic table

Answer 11

7

Question 12

The first period only has ………………….and ……………

Answer 12

Hydrogen and helium

Question 14

The second period table contains ……………….to ………..

Answer 14

Lithium to neon

Question 15

How are the periods labelled

Answer 15

n=1,n=2 etc

Question 16

The number of a p……….is the same as the number of s………

Answer 16

Period, shells

Question 17

What is mass number

Answer 17

Number of protons + number of neutrons

Question 18

To find neutrons formula

Answer 18

Mass no. - atomic no. = neutrons

Question 19

What is atomic number

Answer 19

Number of protons plus electrons in the nucleus of an atom

Question 20

Who is Robert Boyle ( Irish )

Answer 20

Irish chemist who defined the elements

Question 21

Robert Boyle is also known as

Answer 21

The father of chemistry

Question 22

What is element

Answer 22

A substance that cannot be split into simpler substances by chemical means

Question 23

What is dobereiners traids

Answer 23

A group of three elements that have similar chemical properties in which the middle element is the average atomic weight of the other two.

Question 24

How did newlands arranged the elements

Answer 24

He arranged the elements in increasing atomic weight

Question 25

Newland Elements with similar ……………..placed underneath ………….other.

Answer 25

Properties , each

Question 26

What is newlands octaves

Answer 26

Arrangements of elements in which the first and eight element have similar properties

Question 27

Who is Dmitri Mendeleev

Answer 27

Russian chemist who arranged the elements by atomic weight

Question 28

What did Mendeleev do

Answer 28

He left gaps for undiscovered elements

Question 29

What is Mendeleev periodic law

Answer 29

Elements are arranged in order of increasing atomic weight , properties of elements recur periodically

Question 30

Who is Henry Moseley

Answer 30

Using x rays he discovered the number of protons in atoms

Question 31

The number of protons=

Answer 31

Atomic number

Question 32

Henry showed that elects should be arranged by a………………………, not atomic w………

Answer 32

Atomic number, weight

Question 33

What is modern periodic law

Answer 33

Elements are arranged in order of increasing atomic number, properties of elements recur periodically

Question 34

What is the difference between modern and Mendeleev’s periodic table

Answer 34

MENDELEEV - elements are arranged by atomic weight , not all elements discovered ,,,gaps left , transition Elements not in a separate block. MODERN - elements are arranged by atomic number , no gaps left , transition elements in a separate block.

Question 35

What are isotopes

Answer 35

Are atoms of the same element that have different mass number due to the different number of neutrons in the nucleus

Question 36

What are hydrogen isotopes

Answer 36

The element hydrogen for example has three commonly known isotopes : protium, deuterium, tritium

Question 37

Protium contains

Answer 37

1 proton

Question 38

Deuterium contains

Answer 38

1 proton and 1 neutron

Question 39

Tritium contains

Answer 39

1 proton and 2 neutrons

Question 40

What is relative atomic mass

Answer 40

The relative atomic mass of an element is the mass of one of the element’s atoms relative to the mass of an atom of carbon-12.

Question 41

What are the steps of mass spectrometry

Answer 41

Vaporisation, ionisation, acceleration, separation, detection

Question 42

To remember the steps of mass spectrometry tip!!!!!

Answer 42

VERA IS A SERIOUS DANCER

Question 43

What is principle of mass spectrometry

Answer 43

Charged particles moving in a magnetic field are deflected to different extents according to their masses and are separated due to their masses.

Question 44

Mass spectrometry uses

Answer 44

Identify isotopes and their relative abundance, identify unknown compounds- drug testing , to measure the relative molecular masses