Periodic Table test, 3/7/23 Flashcards
1
Q
When elements form compounds, the elements react to form a new substance with _________ chemical properties.
A
opposite
2
Q
How many protons does an atom with an atomic number of 18 and a mass number of 40 have?
A
18
3
Q
An atom has no overall charge if it has an equal number of ________ and _________
A
protons and electrons
4
Q
What two particles make up the nucleus of an atom?
A
protons and neutrons
5
Q
What part of the atom has the least amount of mass?
A
electrons
6
Q
3 parts of the atom and where the are located + their charges
A
-protons +, inside nuclueus
-electrons -, orbit nucleus
