Atoms (Atomic Structure and Electron Configuration) Flashcards
1
Q
What are the three main subatomic particles of an atom?
A
Protons, neutrons, and electrons.
2
Q
Where are protons and neutrons located in an atom?
A
In the nucleus.
3
Q
Where are electrons located in an atom?
A
In electron shells or orbitals surrounding the nucleus.
4
Q
What is the charge of a proton, neutron, and electron?
A
Proton: +1, Neutron: 0, Electron: -1.
5
Q
What is an atomic number?
A
The number of protons in the nucleus of an atom, which determines the element.
6
Q
What is an electron configuration?
A
The arrangement of electrons in an atom’s electron shells or orbitals.
7
Q
What is the electron configuration for Oxygen (O)?
A
1s² 2s² 2p⁴.
