Atomic Structure and the Periodic Table Flashcards
1
Q
What three components does an atom contain
A
proton, neutron and electron
2
Q
what is a proton’s relative mass and charge
A
mass: 1
charge: + 1
3
Q
what is a neutron’s relative mass and charge
A
mass: 1
charge: 0
4
Q
what is a electron’s relative mass and charge
A
mass: very small (1/2000)
charge: -1
5
Q
What does the atomic number represent
A
represents the number of protons (and number of electrons, as number of protons in an atom equals the number of electrons)
6
Q
What does the mass number represent
A
number of protons and neutrons.
7
Q
What is an isotope
A
A different form of the same element - it has the name number of protons but a different number of neutrons
8
Q
What is fractional distillation
A
Used to separate out a mixture of liquids.
9
Q
A
