Chemistry Mocks

Question 1 of 31

1

Who came up with an idea in 460-370 BC that atoms existed , couldn't split or destroy them?

Select one of the following:

Dalton
Democritus
Thomson
Rutherford

Explanation

Question 2 of 31

1

Who came up with an idea in 1800's that atoms are hard spheres with differing properties?

Select one of the following:

Dalton
Thomson
Rutherford
Democritus

Explanation

Question 3 of 31

1

Who discovered electrons in 1897 and came up with the Plum Pudding model?

Select one of the following:

Rutherford
Thomson
Democritus
Dalton

Explanation

Question 4 of 31

1

Who had a gold foil experiment in 1911 that made the plum pudding model wrong , and came up with an idea that most of an atom is an empty space?

Select one of the following:

Rutherford
Democritus
Dalton
Thomson

Explanation

Question 5 of 31

1

What did Bohr-Rutherford came up with in 1912?

Select one of the following:

He came up with an idea that electrons are in energy shells and they orbit around the nucleus
He came up with an idea that nucleus are full of dejunctional energy
He came up with an idea that atoms are small hard spheres
He came up with an idea that people just dream so big but end up in a street.
He came up with an idea that the atom particles consists of further smaller parts.

Explanation

Question 6 of 31

1

Fill the blank space to complete the text.

Electrons always the number of protons

Explanation

Question 7 of 31

1

Fill the blank spaces to complete the text.

Protons have a charge of and a mass of

Explanation

Question 8 of 31

1

Fill the blank spaces to complete the text.

Electrons have a charge of and a mass of

Explanation

Question 9 of 31

1

Fill the blank spaces to complete the text.

Neutrons have a charge of and a mass of

Explanation

Question 10 of 31

1

Atomic mass and mass number the same thing?

Select one of the following:

True
False

Explanation

Question 11 of 31

1

Fill the blank spaces to complete the text.

Mass number // Atomic mass : It is the number of and in an atom . Put it in plural form and make the answer with a letter P starting on it first.

Explanation

Question 12 of 31

1

Click on each orange point and write the correct answer.

Which one is the atomic mass and the atomic number?

Explanation

Question 13 of 31

1

Click on each orange point and write the correct answer.

Get a periodic table and fill the missing answers.

Explanation

Question 14 of 31

1

Fill the blank spaces to complete the text.

Isotopes are the different atoms of the same element containing the number of but different amount of .

Explanation

Question 15 of 31

1

Click on each orange point and write the correct answer.

Isotopes , fill in how many protons and neutrons in each isotope . Ignore the electrons .

Explanation

Question 16 of 31

1

Fill the blank spaces to complete the text.

created the periodic table in , he arranged it in order of atomic mass.

Explanation

Question 17 of 31

1

Fill the blank spaces to complete the text.

Electron configuration. The first energy shell can hold a maximum of electrons , the second and so on can hold a maximum of electrons.

Explanation

Question 18 of 31

1

Fill the blank spaces to complete the text.

The electric configuration for sodium is 2...

Explanation

Question 19 of 31

1

Fill the blank space to complete the text.

An Ion is an charged particle

Explanation

Question 20 of 31

1

Fill the blank spaces to complete the text.

Ionic bonding= of .

Explanation

Question 21 of 31

1

One way of atoms of different elements forming chemical bonds to make a new compound is by IONIC BONDING

Select one of the following:

True
False

Explanation

Question 22 of 31

1

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The element that loses its electron will become and the element that gains the electron will become

Explanation

Question 23 of 31

1

Click on each orange point and write the correct answer.

Which one is the Anion and the Cation?

Explanation

Question 24 of 31

1

Read the image .

Select one of the following:

True
False

Explanation

Question 25 of 31

1

Read the image.

Select one of the following:

True
False

Explanation

Question 26 of 31

1

Click on the orange point and write the correct answer.

What's the name of the new compound ?

Explanation

Question 27 of 31

1

Fill the blank space to complete the text.

In potassium sulfate , there's potassium , sulphur , and .

Explanation

Question 28 of 31

1

Depending on the group number , you can find out the valency number.

Select one of the following:

True
False

Explanation

Question 29 of 31

1

	Created by Greiane C almost 7 years ago

Especially made for year 9 students of BYA to prepare for the upcoming mock exam in 9 days.

Chemistry Mocks

Question 1 of 31

Who came up with an idea in 460-370 BC that atoms existed , couldn't split or destroy them?

Select one of the following:

Explanation

Question 2 of 31

Who came up with an idea in 1800's that atoms are hard spheres with differing properties?

Select one of the following:

Explanation

Question 3 of 31

Who discovered electrons in 1897 and came up with the Plum Pudding model?

Select one of the following:

Explanation

Question 4 of 31

Who had a gold foil experiment in 1911 that made the plum pudding model wrong , and came up with an idea that most of an atom is an empty space?

Select one of the following:

Explanation

Question 5 of 31

What did Bohr-Rutherford came up with in 1912?

Select one of the following:

Explanation

Question 6 of 31

Fill the blank space to complete the text.

Electrons always the number of protons

Explanation

Question 7 of 31

Fill the blank spaces to complete the text.

Protons have a charge of and a mass of

Explanation

Question 8 of 31

Fill the blank spaces to complete the text.

Electrons have a charge of and a mass of

Explanation

Question 9 of 31

Fill the blank spaces to complete the text.

Neutrons have a charge of and a mass of

Explanation

Question 10 of 31

Atomic mass and mass number the same thing?

Select one of the following:

Explanation

Question 11 of 31

Fill the blank spaces to complete the text.

Mass number // Atomic mass : It is the number of and in an atom . *Put it in plural form and make the answer with a letter P starting on it first.*

Explanation

Question 12 of 31

Click on each orange point and write the correct answer.

Which one is the atomic mass and the atomic number?

Explanation

Question 13 of 31

Click on each orange point and write the correct answer.

Get a periodic table and fill the missing answers.

Explanation

Question 14 of 31

Fill the blank spaces to complete the text.

Isotopes are the different atoms of the same element containing the number of but different amount of .

Explanation

Question 15 of 31

Click on each orange point and write the correct answer.

Isotopes , fill in how many protons and neutrons in each isotope . Ignore the electrons .

Explanation

Question 16 of 31

Fill the blank spaces to complete the text.

created the periodic table in , he arranged it in order of atomic mass.

Explanation

Question 17 of 31

Fill the blank spaces to complete the text.

Electron configuration. The first energy shell can hold a maximum of electrons , the second and so on can hold a maximum of electrons.

Explanation

Question 18 of 31

Fill the blank spaces to complete the text.

The electric configuration for sodium is 2...

Explanation

Question 19 of 31

Fill the blank space to complete the text.

An Ion is an charged particle

Explanation

Question 20 of 31

Fill the blank spaces to complete the text.

Mass number // Atomic mass : It is the number of and in an atom . Put it in plural form and make the answer with a letter P starting on it first.