1.2 Mass number, Atomic number and Isotopes Flashcards
1
Q
What is the Atomic Number?
A
Number of Protons in the Nucleus?
2
Q
What is the Mass Number?
A
Number of Protons and Neutrons in the Nucleus
3
Q
What is an Isotope?
A
Isotopes are atoms of the same element with the same atomic number, but with a different number of neutrons, resulting in a different mass number.
4
Q
What are 2 features of Isotopes?
A
React the exactly same way as other atoms as they have the electron configuration, different mass number as there is a different number of neutrons
5
Q
What is relative Atomic Mass?
A
The mean mass of an atom of an element, divided by one twelfth of the mean mass of an atom of the carbon-12 isotope.
