EASY
Upper Secondary: IGCSE
IMPORTANT
Earn 100
State the number of protons, neutrons and in an atom, from a short description like this: .
Important Questions on Atoms and Elements
EASY
Upper Secondary: IGCSE
IMPORTANT
Explain what is a radioisotope?
EASY
Upper Secondary: IGCSE
IMPORTANT
Give one medical and one industrial use for radioisotopes.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Sketch the structure of an atom showing the nucleus and electron shells.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Name the first elements of the periodic table, in order of proton number, and give their symbols.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Sketch the electron distribution for any of one the first elements of the periodic table, when you are given the proton number.
EASY
Upper Secondary: IGCSE
IMPORTANT
Define the term valency electron.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
State the connection between the number of valency electrons and the group number in the periodic table.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
State the connection between the number of electron shells and the period number in the periodic table.
