Periodic table elements Flashcards
1
Q
The number of electrons is the same as…..?
A
protons
2
Q
What is the number of protons called?
A
atomic number
3
Q
What is an atom?
A
it is the smallest unit of an element
4
Q
What is an element?
A
it is a substance made of just one type of atom
5
Q
What kind of appearances do metals have?
A
Shiny
6
Q
What is the relative atomic mass
A
it is the number of protons and neutrons
7
Q
What is the charge of a proton?
A
+
8
Q
What is the mass of an electron?
A
almost 0
9
Q
What is the charge of a neutron
A
0
10
Q
What is the atomic number of hydrogen
A
1
