Review Game Zone
Flash Cards
(current)
Games
Teachers
Search
Chemistry Final 1 Of 3
Test Description: Chem Final
Instructions: Answer all questions to get your test result.
1) Atoms have no electric charge because they
A
Have an equal number of electrons and protons
B
Have neutrons in their nuclei
C
Have an equal number of neutrons and protons
D
have an equal number of charged and non-charged particles
2) A subatomic particle that has a negative charged is called
A
electron
B
Molecule
C
Compound
D
Element
3) Which of the following statements is not true?
A
Neutrons have a negative charge
B
Neutros have no charge
C
A nucleus has a positive charge
D
Protons have a positive charge
4) What is an atom's nucleus made of?
A
only protons
B
only neutrons
C
Protons and neutrons
D
anodes
5) The charge of an atom is
A
positive
B
negative
C
neutral
D
unbalanced
6) An iron atom has an atomic mass of 56. Its atomic number is 26. How many neutrons does the iron atom have?
A
30
B
56
C
82
D
26
7) An element's atomic number is equal to its number of
A
protons and neutrons
B
valence electrons
C
protons
D
neutrons
8) Two different isotopes of an element have different
A
numbers of protons
B
numbers of electrons
C
numbers of neutrons
D
atomic numbers
9) What is the mass number of an element that has 19 protons, 19 electrons, and 20 neutrons?
A
39
B
19
C
20
D
58
10) Oxygen's atomic number is 8. This means that an oxygen atom has
A
eight neutrons in its nucleus
B
a total of eight protons and neutrons
C
eight protons in its nucleus
D
a total of eight neutrons and electrons
11) Which statement about an element's average atomic mass is correct?
A
it is based on an isotope's charge, so negatively charged isotopes have a greater effect than positive ones
B
it is equal to one-twelfth the mass of the most common isotope
C
It is determined by counting the number of isotopes in a sample of the element
D
it is a weighted average, so common isotopes have a greater effect than uncommon ones
12) An atom's mass number equals the number of
A
neutrons
B
protons
C
protons plus the number of electrons
D
protons plus the number of neutrons
13) The nucleus of an atom consists of 8 protons and 6 neutrons. The total number of electrons present in a neutral atom of this element is
A
6
B
14
C
2
D
8
14) Which of the following particles has the least mass?
A
electron
B
neutron
C
proton
D
hydrogen nucleus
15) The cathode ray tube was instrumental in the discovery of
A
the neutron
B
the proton
C
the atom
D
the electron
16) The gold foil experiment contributed to the discovery that:
A
atoms are mostly empty space
B
both that atoms are mostly empty space and that atoms contain a nucleus
C
atoms contain a nucleus
D
atoms contain electrons
17) A sample of element X contains 90% X-35 atoms, 8.0% X-37 atoms, and 2% X-38 atoms. The average atomic mass will be closest to which value?
A
35
B
37
C
38
D
36
18) The atomic mass of an element is defined as the weighted average mass of that element's
A
most abundant isotope
B
least abundant isotopes
C
radioactive isotopes
D
naturally occurring isotopes
19) Compared to the entire atom, the nucleus of the atom is
A
smaller and contains most of the atom's mass
B
larger and contains little of the atom's mass
C
small and contains little of the atom's mass
D
larger and contains most of the atom's mass
20) Which symbols represent atoms that are isotopes?
A
O-16 and O-18
B
I-131 and I-131
C
C-14 and N-14
D
Rn-222 and Ra-222
*select an answer for all questions
Check Results & Get Answers
Play Games with the Questions Above
Teachers: Create FREE classroom games with your questions
Click for more info!
©2007-2024
ReviewGameZone.com
|
About
|
Privacy
|
Contact
|
Terms
|
Site Map
WAIT! Find what you needed?
×
Still Looking for the Answers?
Have Another Question?
Play a Review Game with These Questions?
Want to Make Your Own Test Like This One?