2.1 Study Guide Flashcards
(11 cards)
1
Q
What is an isotope?
A
It is the physical makeup of an element based on the amount of neutrons it has.
2
Q
What is at the top right of a chemical?
A
Charge.
3
Q
What is at the top left of a chemical?
A
Mass number.
4
Q
What is at the bottom left of a chemical?
A
Amount of protons/element.
5
Q
What does a proton do?
A
Defines the element. It adds mass, and charge.
6
Q
What does an electron do?
A
React to chemical change. Also removes charge.
7
Q
What does a neutron do?
A
Stabilizes the nucleus. Also adds
8
Q
Why are isotopes good in scientific research?
A
It can help determine the age of fossils.
9
Q
What is the mass number of a element with 8 protons, 9 neutrons, and 8 electrons?
A
15.
10
Q
What is the charge of a element with 8 protons, 9 neutrons, and 8 electrons?
A
0.
11
Q
A
