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WorksheetsStructure of Atom - 03
Total questions: 20
Worksheet time: 16mins
99.9% of the atom's mass is located in the
electrons
nucleus
protons
neutrons
Carbon atomic number is 6. This means that an carbon atom must have
6 electrons
6 protons
6 electrons and protons
6 neutrons
Who discovered the electron?
Rutherford
John Dalton
Thomson
Goldstein
What is the smallest unit of matter?
An element
A drop of water
A speck of dust
An atom
This particle determines which element it is.
Protons
Neutrons
Electrons
Mrs. Wagner
Neutrons have a ____________ charge.
Neutral, or no charge
Positive
Negative
Neutron? I don't know what that is!
Which charge does a proton have?
Neutral
Negative
No charge- battery is dead
Positive
Where are electrons found?
Outside the nucleus
Under my bed
Inside the nucleus
Inside a proton
Which of these are parts of the atom?
Protons, ProAthletes, Neutrons
Neutrons, Protons, Electrons
Mitochondria, Electrons, Protons
Oxygen
If the atomic number of an element is 12. Predict the valency of this element. Is it a metal or a non-metal?
2,Non-metal
2,Metal
6,Non-metal
6,Metal
Identify an element with twice the number of electrons in its L shell as in its K shell.
Sulfur
Aluminium
Carbon
Silicon
Identify an element with one shell and zero valency.
Hydrogen
Helium
Boron
Argon
Identify an element with three shells and zero valency.
Argon
Neon
Helium
Kyrpton
Identify an element with tendency to gain electrons, having three shells and valency 3
Nitrogen
Alumimium
Boron
Phosphorous
Identify an element with tendency to lose electrons, having three shells and valency 1.
Potassium
Sodium
Lithium
Chlorine
Identify an element with two shells and five electrons in the valence shell.
Nitrogen
Oxygen
Phosphorous
Silicon
