Chapter 4 Flashcards
Atomic Theory (9 cards)
1
Q
What are the two subatomic particles found in the nucleus?
A
protons and neutrons
2
Q
What are the subatomic particles surrounding the nucleus?
A
electrons
3
Q
What is the atomic number?
A
The number of protons (and therefore electrons) in a neutrally charged atom, found on the periodic table
4
Q
What is the mass number?
A
The total number of protons and neutrons in an atom’s nucleus
5
Q
What types of elements are there?
A
- metals
- transition and inner transition metals
- nonmetals
- metalloids
6
Q
What are the 4 groups of main group elements?
A
Group 1, 2, 17, and 18
7
Q
How to find atomic mass?
A
(%)(mass1) + (%)(mass2) etc.
8
Q
What does n represent in electrons?
A
The principal number (a.k.a. the number of shells)
9
Q
Find the number of neutrons in Ni when the mass # is 59
A
31
