stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Physical Science Unit 7 Review Flashcards | StudBud
Explore
/
Physical Science Unit 7 Review
Physical Science Unit 7 Review
26 terms
·
StudBud Administration
·
169 plays
Atoms, Isotopes, ions Review #atom #cation #isotope #anion #science
Flashcards
26 cards
F
Practice quiz
P
Host live
L
Questions
26
Answers
1
Atoms are stable when:
their first energy level is filled with 2 electrons
their innermost energy level is filled with 8 electrons
their outermost energy level is filled with 8 electrons
2
An ionic bond happens between:
a metal and a non-metal atom
two non-metal atoms
two metal atoms
two neutral atoms
3
How many
valence electrons
does
Lithium (Li)
have?
1
2
3
100
4
What particle is responsible for holding the nucleus together?
neutrons
protons
electrons
5
All atoms of the same element have the same number of:
Protons
Electron
Neutrons
6
Where is a
valence electron
located?
In the nucleus
In the first ring, always
In the outtermost ring
7
Which subatomic particle is the
least massive?
proton
electron
neutron
8
Which of the following compounds would contain an ionic bond?
CO
N2
H2O
NaCl
9
Anions
have what type of charge?
Negative
Positive
Pawsitive
Neutral
10
How many
electrons
does a neutral atom of Lithium (Li) have?
5
3
4
6.94
11
What is the smallest particle of an element?
molecule
Electron
Atom
Ion
12
Which of the following compounds would contain a covalent bond?
CO2
NaCl
FeO
AlBr3
13
Isotopes have different numbers of:
protons
electrons
neutrons
14
A
cation
has what type of charge?
Neutral
Negative
Positive
15
An atom of Sodium has 11 p
+
, 12n, & 10e
-
. What is the charge of sodium?
+1
0
-1
16
What two particles have approximately the same mass?
protons & electrons
neutrons & electrons
protons & neutrons
17
A covalent bond happens between:
(+) ion & (-) ion
two metals atoms
a metal atom & a non-metal atom
two non-metal atoms
18
Almost all of the mass of the atom is located:
in the electron cloud
in the nucleus
in the protons
in the neutrons
19
How many
neutrons
does
carbon-13
have?
9
7
8
6
20
To make an atom an ion, what particle must be changed?
electron
proton
neutron
21
What do scientists use to predict the location of an electron?
luck
probability
statistics
calculus
22
This particle is responsible for chemical reactivity:
neutron
electron
proton
23
How many
protons
does Lithium (Li) have?
3
6.94
4
6
24
How many
neutrons
does boron-10 have?
5
6
11
10
25
An atom of Carbon has 6p
+
, 8n, & 6e
-
. What is the symbol for the atom of Carbon?
C+2
14C
C
26
What does the
atomic number
of an atom always represent?
# of neutrons
# of protons
# of electons
