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Q 1/25
Score 0
Which subatomic particles are located in the nucleus of an atom?
30
Only electrons
Neutrons and electrons
Protons and neutrons
Protons and electrons
Q 2/25
Score 0
An atom normally has a neutral charge because it contains an equal number of which two particles?
30
Nuclei and shells
Neutrons and electrons
Protons and electrons
Protons and neutrons
25 questions
Q.
Which subatomic particles are located in the nucleus of an atom?
1
30 sec
Q.
An atom normally has a neutral charge because it contains an equal number of which two particles?
2
30 sec
Q.
What are isotopes?
3
30 sec
Q.
What is the term for the outermost electrons of an atom that are involved in chemical bonding?
4
30 sec
Q.
Which of the following describes the relative mass of an electron compared to a proton?
5
30 sec
Q.
If an atom has 11 protons, 12 neutrons, and 11 electrons, what is its mass number?
6
30 sec
Q.
Which subatomic particle has a negative electric charge and is found outside the nucleus?
7
30 sec
Q.
Which of the following elements is a highly reactive metal belonging to Group 1, often stored in oil to prevent it from reacting with moisture in the air?
8
30 sec
Q.
9
30 sec
Q.
Which of the following subatomic particles determines the identity of an element and matches the element's atomic number?
10
30 sec
Q.
Horizontal rows in the periodic table are called periods. What is the name given to the vertical columns common to elements with similar chemical properties?
11
30 sec
Q.
Which of the following describes the general trend of atomic mass as you move from left to right across a period in the periodic table?
12
30 sec
Q.
Where is most of the mass of an atom located?
13
30 sec
Q.
Which statement correctly describes the location and charge of an electron within an atom?
14
30 sec
Q.
What determines the identity of an element, such as whether an atom is Oxygen or Carbon?
15
30 sec
Q.
The isotopes of a specific element, such as Carbon-12 and Carbon-14, differ from each other because they contain a different number of which subatomic particle?
16
30 sec
Q.
Which of the following describes the volume of an atom?
17
30 sec
Q.
Which of the following subatomic particles has a positive electrical charge and is located in the nucleus of an atom?
18
30 sec
Q.
Which of the following describes a horizontal row on the Periodic Table?
19
30 sec
Q.
Which of the following is the chemical symbol for the element Gold?
20
30 sec
Q.
An element is found to be a shiny solid that conducts electricity and heat very well. In which general area of the periodic table is this element most likely located?
21
30 sec
Q.
22
30 sec
Q.
23
30 sec
Q.
An atom of Uranium-235 and an atom of Uranium-238 are both isotopes of Uranium. What is the main structural difference between these two atoms?
