Topic 1 - Atomic Structure And The Periodic Table

Question 0

What is the structure of an atom

Answer 0

Nucleus in the middle (containing protons and neutrons)

Electrons around the nucleus

Question 1

Where is the nucleus in an atom?

Answer 1

In the middle of the atom

Question 2

What charge does the nucleus have

Answer 2

Positive charge because protons are positively charged and neutrons have no charge

Question 3

What charge do electrons have

Answer 3

Negative charge

Question 4

What determines the size of the electrons’ orbits around the atom

Answer 4

How big the atom is

Question 5

Do atoms have a mass

Answer 5

Virtually no mass

Question 6

Number of protons equals what?

Answer 6

Number of electrons

Question 7

Protons are…

Answer 7

Heavy and positively charged

1 = relative mass
\+1 = relative charge

Question 8

Neutrons are…

Answer 8

Heavy and neutral

Relative charge = 0
Relative mass = 1

Question 9

Electrons are…

Answer 9

Tiny and negatively charged

Charge = -1
Mass = 1/2000

Question 10

What is the group of the alkali metals?

Answer 10

1

Question 11

What is the group of the halogens?

Answer 11

7

Question 12

Group of noble gases

Answer 12

0/8

Question 13

Where are the transition metals?

Answer 13

Centre of table

Question 14

Define elements

Answer 14

They consist only one type of atom

Question 15

What makes elements different?

Answer 15

The contain different numbers of protons

Question 16

What does the atomic number show?

Answer 16

Number many protons

Question 17

What does the mass number show of an element?

Answer 17

Protons plus neutrons in the atom

Question 18

What are the same out of: protons, electrons, neutrons

Answer 18

Number of protons and electrons are equal

Question 19

What is an isotope?

Answer 19

Different atomic forms of the same element, which have the same number of protons, and different numbers of neutrons

Question 20

What are the elements in order of today?

Answer 20

Their relative atomic number

Question 21

Who arranged the first periodic table?

Answer 21

Mendeleev, a Russian scientist

Question 22

How did mendeleev arrange the table?

Answer 22

According to their relative atomic mass

Question 23

What are the periods arranged in now?

Answer 23

Order of increasing atomic number

Question 24

The period number is the same as…

Answer 24

The number of electron shells

Question 25

Elements in the same group have the same number…

Answer 25

Of electrons in their outer shell