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WorksheetsAtoms
Total questions: 10
Worksheet time: 24mins
Who discovered the Neutron?
Dalton
J J Thompson
Chadwick
Daraday
Phrase equivalent in meaning to the phrase "have the same number of protons in the nucleus"
have the same nuclear mass
have the same nuclear mass
have the same nuclear charge
have the same number of neutrons
What is the atomic number of an atom equal to?
The number of protons in the nucleus
The number of neutrons in the nucleus
The number of electrons
The numbers of protons and neutrons in the nucleus
What is the centre of an atom called?
The Protons
The Electrons
The Neutrons
The Nucleus
An atom has an atomic number of 9 and a mass number of 19. What are its number of protons, neutrons and electrons?
Protons = 10, Neutrons=19, Electrons=10
Protons = 9, Neutrons=10, Electrons=9
Protons = 19, Neutrons=10, Electrons=19
Protons = 10, Neutrons=9, Electrons=10
The identity of a chemical element is determined by which of the following?
The number of protons it possesses
The number of neutrons it possesses
The number of electrons it possesses
The sum of the number of protons and neutrons it possesses.
Atom has 13 protons and 14 neutrons. What is its mass number?
14
27
13
40
How many neutrons does this atom of oxygen have?
16
32
24
8
An atom of sodium has an atomic number of 11 and a mass number of 23. Which of the following statements is correct?
An atom of sodium has 11 protons, 11 electrons, and 12 neutrons.
An atom of sodium has 11 protons, 11 electrons, and 11 neutrons.
An atom of sodium has 11 protons, 12 electrons, and 11 neutrons.
An atom of sodium has 11 protons, 12 electrons, and 12 neutrons.
The particles in an atom that are neutral and have no charge are...
(a)
