Atomic Structure and The Periodic Table Flashcards
What is the relative charge of a proton?
+1
What is the relative charge of a neutron?
0
What is the relative charge of an electron?
-1
What is the relative mass of a proton?
1
What is the relative mass of a neutron?
1
What is the relative mass of an electron?
1/1835
What is the modern periodic table ordered in?
Atomic number
What are columns on the periodic table known as?
Groups
What are rows on the periodic table known as?
Periods
What is atomic mass?
The total relative mass of the nucleus of an atom
What is the nucleus of an atom?
It is in the centre of the atom and is made up of protons and neutrons. It contains most of the atom’s mass.
What does the atomic number tell you?
The atomic number is equal to the number of protons as well as the number of electrons
How are electrons arranged?
In shells that surround and orbit the nucleus.
What is the maximum number of electrons in an atoms first shell?
2
What is the maximum number of electrons in an atoms second shell?
8