Atomic Structure Flashcards
1
Q
What is an atom?
A
An atom is the smallest particle of an element that still retains the properties of that element.
2
Q
Name three sub-atomic particles?
A
Proton, neutron, electron
3
Q
Define atomic number.
A
Number of protons in the nucleus
4
Q
Define atomic mass.
A
Number of protons and neutrons in the element
5
Q
Define isotope.
A
Atoms of the same element that have a different number of neutrons.
6
Q
Explain the term ‘group’ in relation to the periodic table.
A
Elements with similar properties.
7
Q
Explain the term ‘periodic’ in relation to the periodic table
A
7 horizontal rows of elements
