Atoms- Unit 1 Flashcards
What is the charges of electrons?
Negative 1
What is the charge of a neutron?
Neutral no charge
What is the charge of a proton?
Positive 1
What is the mass of a neutron?
1
What is the mass of a proton?
1
What is the mass of electron?
Very Small
Where do you find the neutrons in an atom?
In the nucleus
What particles are in the nucleus?
protons and neutrons
Where do you find electrons in an atom?
In energy shells or levels
How many electrons can you fit in the first shell?
2
How many electrons can you fit in the second shell?
8
How many electrons can you fit in the third shell?
8
How do you find the number of protons in an element?
It’s (atomic) proton number
How do you find the number of neutrons in an element?
Mass number take away the proton number
How do you find the number of electrons in an element?
It’s atomic (proton) number