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WorksheetsAtoms, electrons, nuclear decay
Total questions: 15
Worksheet time: 23mins
What is the maximum number of electrons that the third shell can hold?
2
8
18
32
An isotope with an unstable nuclei is called
an isotopic nuclei
a covalent nuclei
a radioisotope
a radionucleus
If you know an element's atomic number, you also know...
the number of protons.
the number of neutrons.
the atomic mass.
how the element will react.
What does an atom emit during alpha decay?
a helium nucleus
an electron
high-energy waves
a proton
What does an atom emit during beta decay?
a proton
a neutron
an electron
high-energy waves
If an atom of potassium-40 (K) goes through gamma decay, what would you have at the end?
Potassium-40
Calcium-40
Argon-35
Potassium-39
Which element is this?
Nickel
Neon
Sodium
Nitrogen
How many valence (outer) electrons does an Oxygen atom have?
2
6
8
16
How many electrons can fit on the 1st energy level (orbital) for any Bohr Model?
2
6
8
10
