stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Chapter 5 Atomic Structure 2016 Flashcards | StudBud
Explore
/
Chapter 5 Atomic Structure 2016
Chapter 5 Atomic Structure 2016
35 terms
·
StudBud Administration
·
483 plays
Unit 3
Flashcards
35 cards
F
Practice quiz
P
Host live
L
Questions
35
Answers
1
Which of the following categories includes the majority of the elements?
liquids
metalloids
nonmetals
metals
2
An atom is electrically neutral because
neutrons balance the protons and neutrons
the numbers of protons and neutrons are equal
the numbers of protons and electrons are equal
nuclear forces stabilize the charges
3
The box for an element from the periodic table is shown. Which is the atomic number?
6
C
12.011
Carbon
4
What element has 14 protons?
Silicon
Nitrogen
Sulfur
Aluminum
5
What is the smallest part of an element that retains the properties of the element?
electron
atom
neutron
proton
6
Using the periodic table from above, how many electrons are in Al
+3
14
13
10
16
7
Which scientist described a positively charged nucleus in the middle of a lot of empty space?
Chadwick
Bohr
Rutherford
Thomson
8
The relative abundance of Fe-55 is 15% and mass of 55 amu. Fe-56 is 85% and amu of 56:
111 amu
55.85 amu
52.55 amu
50.45 amu
9
The atomic number of oxygen, 8, indicates that there are eight:
protons in the nucleus of an oxygen atom
oxygen nuclides
neutrons outside the oxygen atom's nucleus
energy levels in the oxygen atom's nucleus
10
Atoms of the same element that have different masses are called:
isotopes
moles
nuclides
neutrons
11
The box for an element from the periodic table is shown. Which is the atomic mass?
Carbon
C
12.011
6
12
Zn-66 (atomic number 30) has
30 neutrons
36 neutrons
33 neutrons
96 neutrons
13
Which of the following elements is in the same period as phosphorus?
nitrogen
carbon
oxygen
magnesium
14
Who was the schoolmaster who studied chemistry and proposed an atomic theory?
Dmitri Mendeleev
Jons Berzelius
John Dalton
Robert Brown
15
A positively charged particle with a mass of 1.673 x 10
-24
g is a(n):
electron
positron
neutron
proton
16
Sodium has an atomic number of 11 and mass of 22, how many electrons does a neutral atom have?
12
22
23
11
17
Argon (atomic number 18 and mass number 40) has _____ protons in its nucleus.
18
40
22
9
18
What is the atomic number for aluminum from the figure above?
13
14
26.9815
26.98
19
A nuclear particle that has about the same mass as a proton, but with no electrical charge:
nuclide
isotope
neutron
electron
20
Which of the following is the halogen that is in Period 5?
Xenon (Xe)
Bromine (Br)
Strontium (Sr)
Iodine (I)
21
Which two are isotopes of one another?
N & O
L & P
O & Q
N & Q
22
Which is the number of neutrons in
80
Br?
115
80
45
35
23
In the figure above, a neutral atom of silicon contains:
28.09 electrons
16 electrons
38 electrons
14 electrons
24
The nucleus of most atoms is composed of:
tightly packed neutrons
tightly packed protons and neutrons
tightly packed protons
loosely connected protons and electrons
25
Most of the volume of an atom is occupied by the:
protons
nuclides
nucleus
electron cloud
26
What is the number of protons in
56
Fe?
56
82
26
30
27
Using the periodic table from above, how many electrons are in Cl
-1
?
35
16
18
17
28
The atomic mass listed in the periodic table is the
average atomic mass
relative atomic mass of the most stable radioactive isotope
mass number of the most abundant isotope
relative atomic mass of the most abundant isotope
29
If chlorine has a mass of 35 and an atomic number of 17, how many neutrons does it have?
17
18
34
35
30
The total number of protons and neutrons in the nucleus of an atom is its:
Avogadro's constant
mass number
atomic number
number of neutrons
31
An atom of potassium has 19 protons and 20 neutrons. What is the mass number?
10
19
20
39
32
Which region contains the alkaline earth metal family or group of elements?
Dark Blue
Orange
Red
Purple
33
Which is the correct symbol for the atom with 42 protons and 49 neutrons?
Molybdinum-49
Indium-49
Molybdinum-91
Indium-91
34
Chlorine has atomic number 17 and mass number 35. It has:
17 protons, 17 electrons, and 52 neutrons
18 protons, 18 electrons, and 17 neutrons
35 protons, 35 electrons, and 17 neutrons
17 protons, 17 electrons, and 18 neutrons
35
Which scientist described a positively charged substance with electrons dispersed throughout?
Rutherford
Bohr
Chadwick
Thomson
