Atoms Flashcards
1
Q
Name the sub-atomic particles of atoms
A
Protons
Electrons
Neutrons
2
Q
Describe the charges of the sub-atomic particles
A
Protons +
Electrons -
Neutron no charge
3
Q
The mass of the sub-atomic particles are …
A
Protons = 1 Neutrons = 1 Electrons = 0
4
Q
Explain why atoms are neutral
A
Atoms have the same number of protons and electrons. As the positive charge of protons and negative charge of electrons cancel each other, the atoms are neutral.
5
Q
What is atomic number?
A
Atomic number = number of protons = number of electrons
6
Q
What is mass number?
A
Mass number = number of protons + number of neutrons
7
Q
Will the atoms of the same element have the same number of protons and electrons?
A
Yes
8
Q
Periodic table is arranged in what order?
A
Atomic number order
