Structure of atoms Flashcards
What are the three components of the structure of an atom?
Protons, electrons and neutrons.
Which parts of an atom are located in the nucleus?
Protons and neutrons.
What charge do protons have?
Positive charge.
What charge do neutrons have?
They have a neutral charge.
What charge do electrons have?
Negative charge.
Where are the electrons located?
In energy levels (shells) around the nucleus.
What is the mass of protons?
1
What is the mass of neutrons?
1
What is the mass of electrons?
No mass.
Which properties match the atomic number of an element?
The number of protons and electrons.
What is the formula for finding the number of neutrons in each element?
atomic weight - atomic number = number of nuetrons.
What is the maximum that the first 3 energy shells full of electrons can hold?
2, 8, 8.
