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- Multiple ChoicePlease save your changes before editing any questions.The subatomic particle that determines the identity of an element.neutronprotonelectronouter shell
- Multiple ChoicePlease save your changes before editing any questions.What is the mass number and name of an element with 8 protons and 8 neutrons?16 - Carbon16 - Oxygen24 - Oxygen8 - Neon
- Multiple ChoicePlease save your changes before editing any questions.An element with a mass number of 10 and an atomic number of 6 has how many protons?58610
- Multiple ChoicePlease save your changes before editing any questions.
What is the atomic number of the atom pictured?11122223 - Multiple ChoicePlease save your changes before editing any questions.How many protons, electrons and neutrons does an neutral atom of Calcium have? Its atomic number is 20 and the mass number is 40.20 protons, 18 electrons and 40 neutrons20 protons, 20 electrons and 20 neutrons40 protons, 40 electrons and 20 neutrons20 protons, 18 electrons and 20 neutrons
- Multiple ChoicePlease save your changes before editing any questions.Ag--110 and Ag--112 are two forms of silver with different mass # so they arecompoundsisotopesorbitalsneutrons
- Multiple ChoicePlease save your changes before editing any questions.What is the mass number of this element?5273259
- Multiple ChoicePlease save your changes before editing any questions.
Thompson was the first to discover a subatomic particle - the electron. What are the others?
neutrons & positrons
protons & neutrons
positrons & quarks
protons & positrons
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Rutherford concluded that the amount of positive charge varies
with the amount of electrons in the nucleus.
as the the amount of isotopes varies.
with the amount of neutrons in the nucleus.
with different elements.
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The word "electron" comes from the ancient Greek word meaning
amber.
to change or become flexible.
elektron.
electricity.
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Electrons can best be described as having a
large size, positive charge.
very small size, positive charge.
large size, negative charge.
very small size, negative charge.
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Neutrons have almost exactly the same mass as
electrons.
positrons.
protons.
quarks.
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James Dalton proved that the true nature of the atom could best be described as resembling "plum pudding."
True
False
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Which statement best describes an isotope of an element?
they share an equal amount of neutrons
they have the same atomic #'s but with different mass #'s
they have the same mass #'s but with different atomic #'s
they have a different # (number) of protons
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Which particles are inside the nucleus?
Electrons
My crumbs from breakfast
Neutrons
Protons
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What is the name of the scientist
JJ Thomson
Neil Bohr
Rutherford
James Chadwick
- Multiple ChoicePlease save your changes before editing any questions.
What is the lightest subatomic particle
atom
electron
proton
neutron