Simple Model of the Atom (AQA GCSE Chemistry): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
Which subatomic particle has a positive charge?
Which subatomic particle has a positive charge?
Proton
Where are neutrons found in an atom?
Where are neutrons found in an atom?
In the nucleus
Why does the nucleus contain almost all of the atom's mass?
Why does the nucleus contain almost all of the atom's mass?
Protons & neutrons are much heavier
What does the atomic number tell us?
What does the atomic number tell us?
How many protons an atom contains
Why is the atomic number important for identifying elements?
Why is the atomic number important for identifying elements?
Each element has a unique atomic no.
In a normal atom, how does the number of electrons compare to the number of protons?
In a normal atom, how does the number of electrons compare to the number of protons?
They are equal
Why do atoms have no overall electrical charge?
Why do atoms have no overall electrical charge?
Positive & negative charges balance out
How is the mass number calculated?
How is the mass number calculated?
Protons + neutrons
How do you calculate the number of neutrons in an atom?
How do you calculate the number of neutrons in an atom?
Mass number - atomic number
A sodium atom has atomic number 11 and mass number 23. How many neutrons does it have?
A sodium atom has atomic number 11 and mass number 23. How many neutrons does it have?
12
In atomic diagrams, how are electrons typically shown?
In atomic diagrams, how are electrons typically shown?
As crosses (x) on outer rings
Why are atomic diagrams not drawn to scale?
Why are atomic diagrams not drawn to scale?
Electrons would be too far away