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Isotopes Flashcards | StudBud

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Isotopes

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#Introduction to isotopes

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Questions 9

Answers

1
Gamma radiation is...
was invented by Bruce Banner.
pure electromagnetic energy.
given off by all elements.
not dangerous.
2
An alpha particle is...
an unstable proton.
a high speed electron.
a hydrogen particle.
a helium nucleus.
3
Conservation of mass states that...
mass is not destroyed.
the atoms should be saved.
the atoms will conserve energy.
the atomic mass will not change.
4
An isotope will undergo nuclear decay because...
there are too many electrons in the valence shell.
it is in an unstable form.
the protons and electrons are not balanced.
the ionic charge is not stable.
5
An isotope is ...
sometimes unstable
Something to do with the nucleus
Some sort of chemistry stuff
I don't know
6
All elements can have varying numbers of neutrons in the nucleus of the atom.
False
True
7
Half life is the time taken for...
half the isotopes to change.
half the protons to disappear.
half the neutrons to disappear.
half the electrons to disappear.
8
All elements have a preferred combination of protons and neutrons in the nucleus.
False
True
9
A beta particle is...
an alpha particle that split into two.
an electron ejected from an atom.
what remains after an atom disappears.
another name for a gamma nucleus.