The Periodic Table

Question 1

An element on a periodic table

Answer 1

is a substance that cannot be split into simpler substances by chemical means

Question 2

In what way are elements arranged on the periodic table

Answer 2

Increasing atomic number

Question 3

Why are the elements on the periodic table arranged this way

Answer 3

each element has one more proton then the element before

Question 4

Columns on a periodic table are called

Answer 4

Groups

Question 5

Rows on a periodic table are called

Answer 5

Periods

Question 6

What chemist was the first to define the meaning of the term “element”

Answer 6

Robert Boyle

Question 7

Who discovered what is known as electrolysis

Answer 7

Humphrey Davy

Question 8

What elements did Humphrey Davy discover

Answer 8

Potassium,Sodium,Calcium

Question 9

What is Dobereiners Triads

Answer 9

triad is a group of 3 elements with;
1.similar chemical properties
2.atomic weight of the middle element is approximately equal
3.to the average of the other 2

Question 10

Whats newlands octaves

Answer 10

Are arrangements of elements in which the first and eighth elements,counting from a particular element have similar properties

Question 11

How did newlands “law of octaves” break down

Answer 11

He didn’t leave any gaps for undiscovered elements

Question 12

Who was given credit for the finding of the periodic table

Answer 12

Meneleev

Question 13

What is Mendeleev periodic law

Answer 13

When elements are arranged in order of increasing atomic weight, the property of these elements recur periodically

Question 14

What did Mendeleev do with the periodic table

Answer 14

He left gaps undiscovered elements

Question 15

What did Henry Mosley do

Answer 15

Placed elements in order of atomic number, rather than atomic mass

Question 16

Modern periodic table

Answer 16

When elements are arranged in order of increasing atomic order, the properties of the elements recur periodically

Question 17

What do groups [columns] do

Answer 17

Tells us the number of electrons in the outermost shell [highest occupied energy level]

Question 18

What do periods [rows] do

Answer 18

The period tells us the number of shells the elements has

Question 19

What is an ion

Answer 19

An ion is an atom that has gained or lost electrons

Question 20

In larger atoms is easier to remove electron, How?

Answer 20

Distance-further from the nucleus
Shielding-more electrons in between outer electrons and nucleus

Question 21

How many ions can transition metals form?

Answer 21

More then 1

Question 22

What tells us the charge of an ion?

Answer 22

Roman numerals e.g Copper (II) Cu2+

Question 23

What is an isotope?

Answer 23

Are atoms of the same elements which are a different mass number due to number of neutrons

Question 24

What is relative atomic mass (Ar)?

Answer 24

Is the average mass numbers of the isotopes of the elements as they occur naturally

Question 25

What is the principle of mass spectrometry?

Answer 25

Is that the particles moving in a magnetic field are deflected to different extents according to their masses and are thus separated according to their masses

Question 26

What is stage 1

Answer 26

Vaporisation (liquid turns to gas)

Question 27

What is stage 2?

Answer 27

Ionisation (knocking one or more electrons off to give a positive ion)

Question 28

What is stage 3?

Answer 28

Acceleration (high speeds so that a fine beam of these ions pass into an analyser unit)

Question 29

What is stage 4?

Answer 29

Separation (ions deflected by a magnetic field)

Question 30

What’s stage 5?

Answer 30

Detection (the beams of ions fall on the detector, passing through the machine is detected electrically)