Niels Bohr developed a model sometimes called the 'onion model'. What was new about this model?

Electrons orbited the nucleus in energy levels or shells

Carbon has an atomic number of 6, what does this number tell us?

An atom of carbon has 6 protons

Potassium (K) has an atomic number 19, mass number 39. Which statement is correct?

Potassium has 19 protons, 19 electrons & 20 neutrons

What did Earnest Rutherford discover?

That atoms are mostly made of empty space

Which of the following is a true statement?

Periods form horizontal rows; groups form vertical columns

Some subatomic particles are charged, which statement is true?

Neutrons =neutral, Protons =positive and electrons =negative

Why are atoms neutral?

They have the same number of protons and electrons

What do electrons in the same shell have in common?

They have the same amount of energy

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Yr9 Matter: Atoms and the periodic table

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A Quiz to check understanding of history and structure of the atom as well as how elements are arranged in the periodic table

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Questions 18

Answers

1
Niels Bohr developed a model sometimes called the 'onion model'. What was new about this model?
There were protons and neutrons in the nucleus
The atom was neutral
Electrons orbited the nucleus in energy levels or shells
The atom was made of mostly empty space
2
An element found in group 13 of the periodic table will have how many valence (outer) electrons
6
3
13
10
3
Fluorine has an atomic number of 9 and mass number of 19. How many neutrons are in the nucleus?
10
18
9
4
Which is a subatomic particle
Electra
Carbon
Neutron
Positron
5
Carbon has an atomic number of 6, what does this number tell us?
An atom of carbon weighs 6g
An atom of carbon has 6 positrons
An atom of carbon has 3 protons and 3 electrons
An atom of carbon has 6 protons
6
On the periodic table metal are generally found where?
Right hand side
Bottom right
Left hand side
Bottom left
7
Potassium (K) has an atomic number 19, mass number 39. Which statement is correct?
Potassium has 19 protons, 19 electrons & 20 neutrons
Potassium has 19 protons, 20 electrons & 20 neutrons
Potassium has 20 protons, 19 electrons & 19 neutrons
8
What charge do electrons have?
positive
neutral
negative
9
What did Earnest Rutherford discover?
That electrons move around the nucleus in clouds
Protons and neutrons
That electrons orbit the nucleus
That atoms are mostly made of empty space
10
Which of the following is a true statement?
Periods form horizontal rows; groups form vertical columns
Categories form horizontal rows; gases form vertical columns
Groups form horizontal rows; periods form vertical columns
Gases form horizontal rows; categories form vertical columns
11
What did JJ Thompson discover in 1904?
Protons and neutrons
Electrons
That Atoms are made of mostly empty space
Electrons are found in clouds
12
What charge to neutrons have?
Positive
negative
neutral
13
All the elements in group 18 of the periodic table are unreactive gases. What are they called?
Inert gases
Royal gases
Noble gases
Earth gases
14
Some subatomic particles are charged, which statement is true?
Neutrons =negative, Protons =positive and electrons =neutral
Neutrons =neutral, Protons =positive and electrons =negative
Neutrons =positive, Protons =neutral and electrons =negative
15
Where in the atom are neutrons found?
In the nucleus with electrons
in the nucleus with protons
Orbiting the nucleus
16
Why are atoms neutral?
They have the same number of protons and neutrons
They have the same number of protons and electrons
They have the same number of electrons and neutrons
They have equal numbers of + and - charges in the nucleus
17
What charge to protons have?
negative
neutral
Positive
18
What do electrons in the same shell have in common?
They are all positively charged
They have the same amount of energy
They all have neutral charges
They are all made up of atoms

Yr9 Matter: Atoms and the periodic table Flashcards | StudBud