Chapter 2 Quiz Flashcards
The most commonly known modern atomic theory was developed by:
a.) rutherford
b.) bohr
c.) dalton
d.) thomson
b.) bohr
The earliest atomic theory is generally associated with:
a.) leucippus
b.) thomson
c.) bohr
d.) dalton
a.) leucippus
An atom of oxygen (16/8 O) has
a.) eight neutrons
b.) all of the above
c.) eight electrons
d.) eight protons
b.) all of the above
For the chemical element sodium (22/11 Na) the atomic mass number is:
a.) 33
b.) none of the above
c.) 22
d.) 11
c.) 22
Electrons in the M shell:
a.) do not exceed 18 in number
b.) do not exist in an atom of carbon (16/8 O)
c.) never exceed 8 in number
d.) have lower binding energy than those in the n shell
a.) do not exceed 18 in number
How many nucleons does 131/53 I) have?
a.) 184
b.) 78
c.) 131
d.) 53
c.) 131
Each electron shell has a specific limit to the amount of electrons it can hold.
a.) true
b.) false
a.) true
Discovery of the electron is attributed to:
a.) thomson
b.) dalton
c.) rutherford
d.) bohr
a.) thomson
If an atom has 16 electrons which one will be the outermost shell?
a.) L
b.) N
c.) M
d.) O
c.) M
Atoms with a differnt number of protons but the same combined number of protons and neutrons are:
a.) isobars
b.) isotopes
c.) isotones
d.) isomers
a.) isobars
The electron shell closest to the nucleus is lettered:
a.) K
b.) L
c.) H
d.) M
a.) K
When the bond between two atoms is due to their sharing an outer shell electron, this is called a:
a.) molecular bond
b.) covalent bond
c.) compunding bond
d.) ionic bond
b.) covalent bond
Electron shells are the hard coating around the electron.
a.) true
b.) false
b.) false
The atomic number:
a.) has the symbol a
b.) is the number of protons
c.) is the number of protons plus neutrons
d.) has the symbol n
b.) is the number of protons
How many neutrons does (7/3 Li) have?
a.) 3
b.) 4
c.) 7
d.) 10
b.) 4
