Chapter 6.2: The Structure of Atoms Flashcards
- identify the location of the subatomic particles in an atom - relate atomic number to proton number in an atom - understand and explain the effect of changing the number of subatomic particles have on an atom’s identity - expressing values in scientific notation and whole numbers - relate atom, isotope, and ion
1
Q
The region at the center of an atom which contains most of the mass is called the?
A
Nucleus
2
Q
Positively charged particles in an atom are called?
A
Protons
3
Q
Negatively charged particles in an atom are called?
A
Electrons
4
Q
What is the region around the outside of the nucleus called where one or more electrons are likely to be found?
A
Electron cloud
5
Q
Neutral particles with no charge, found in the nucleus are called?
A
Neutrons
6
Q
What is bigger a proton or electron?
A
Protons are 1,800 times bigger than an electron.
7
Q
The electron cloud is mostly?
A
Empty space
8
Q
The number of protons in the nucleus of an atom of an element is called the?
A
Atomic number
9
Q
The number of protons and neutrons in the nucleus of an atom of an element is called the?
A
Atomic mass
