C1 - Atomic Structure and The periodic Table Flashcards
(32 cards)
Name the three subatomic particles
Neuton, proton and electon
What subatomic particle do isotopes have the same number of?
protons
What subatomic particle do isotopes have a different number of?
neutons
Do isotopes have the same or different atomic numbers?
Same but different atomic mass
Do isotopes have different atomic masses?
Yes, they have different atomic masses
What is a compound?
A compound is when two or more elements are chemically joined.
Give two examples of compounds
Carbon dioxide and magnesium oxide.
What is a proton’s atomic mass?
1
What is an electron’s atomic mass?
0 or very little
What is a neutron’s atomic mass?
1
What is the charge of a proton?
+1
What is the charge of an electron?
-1
Where can you find a proton in an atom?
In the nucleus
Where can you find a neutron in an atom?
In the nucleus
What is the charge of a neutron?
0
Where can you find an electron in an atom?
In the electrons’ shells
What is the equation for relative atomic mass?
sum of (isotope abundance × isotope mass number) over
sum of abundances of all isotopes
Give some properties of metals
They are strong, malleable, good conductors of
electricity and heat. They bond metallically.
Give some properties of nonmetals
They are dull, brittle, and not always solids at room temperature.
Who came up with the plum pudding model
JJ Thomson
Who experimented with the Alpha scattering experiment?
Ernest Rutherford
Who discovered that Electrons are in shells orbiting the nucleus?
Niels Bohr
Who discovered that there are neutrons in the Nucleus?
James Chadwick
Are halogens nonmetals or metals
nonmetals
