Atomic structure and periodic table

Question 1

Which letter shows the position of lithium in the periodic table?

Accepted Answer

B

Question 2

The atomic number of carbon is 6. Which two of these particles are atoms of carbon?

Accepted Answer

P and S

Question 3

How many neutrons are in this atom?

Accepted Answer

4

Question 4

Different atoms of helium

Accepted Answer

must all contain 2 protons

Question 5

How many electrons are in this atom?

Accepted Answer

3

Question 6

Helium is a noble gas. Which letter shows the position of helium in the periodic table?

Accepted Answer

B

Question 7

Which letter shows the position of a halogen?

Accepted Answer

Z

Question 8

Which statement correctly describes the particles in an atom of helium?

Accepted Answer

protons are positively charged and electrons have no charge

Question 9

The correct symbol for an atom of helium is

Accepted Answer

He

Question 10

Two elements in the same group are

Accepted Answer

S and T

Question 11

Which row of the table shows the relative charges of protons, neutrons and electrons?

Accepted Answer

B

Question 12

The atomic number of neon is

Accepted Answer

10

Question 13

Lithium, sodium and potassium have similar chemical properties because their atoms have the

Accepted Answer

same number of electrons in the outer shell

Question 14

Which row in the table correctly identifies the different sub atomic particles?

Accepted Answer

C

Question 15

Which letter shows the position of an element that is inert (unreactive)?

Accepted Answer

D

Question 16

The element with the atomic number of 12 is

Accepted Answer

L

Question 17

The mass number of neon is

Accepted Answer

20

Question 18

Helium and neon are in the same group of the periodic table. Helium and neon...

Accepted Answer

have similar properties

Question 19

Which elements are in the same period?

Accepted Answer

W and X

Question 20

There are two different types of neon atom. Both contain 10 electrons. These atoms also have..

Accepted Answer

the same number of protons

Question 21

The two elements which are both metals are

Accepted Answer

L and M

Question 22

Chlorine is a halogen. Which letter shows the position of chlorine in the periodic table?

Accepted Answer

D

Question 23

Which of these show the positions of the two metals with the most similar chemical properties?

Accepted Answer

T and Y

Atomic structure and periodic table

Questions 23

Atomic structure and periodic table

Questions 23