WorksheetsAtoms Exam 2024
Total questions: 23
Worksheet time: 12mins
Name
Class
Date
1.
Your first name
4 lines
2.
Your LAST name
4 lines
3.
Your class period
a)
1st
b)
3rd
c)
4th
d)
5th
e)
6th
4.
The diagram below shows a model of an atom. The model contains three different subatomic particles. Particles X and Y are inside the nucleus. Particle Z is outside the nucleus. Choose the statement that best describes the charges on the particles in this model.
a)
All of the particles have a negative charge.
b)
Both particles X and Z have a negative charge
c)
Particle Z has a positive charge
d)
Particle Z has a negative charge
5.
A model of a Beryllium atom is shown below. What types of particles are found in the cloud or on the shells surrounding the atom's nucleus.
a)
Positively charged particles and negatively charged particles
b)
Negatively charged particles only
c)
Neutral particles and positively charged particles
d)
Positively charged particles only
6.
A student prepared diagrams to model atoms of two elements. Atoms of which two elements are represented by these models?
a)
Oxygen, O, and Neon, Ne
b)
Fluorine, F, and Neon, Ne
c)
Silicon, Si, and Phosphorus, P
d)
Beryllium, Be and Boron, B
7.
A model of an atom is shown below. An atom of which element is represented by this model?
a)
Boron, B
b)
Carbon, C
c)
Neon, Ne
d)
Sodium, Na
8.
An atom of a certain element has 36 electrons and a mass number of 84. At room temperature this element is a very stable gas. How many neutrons are in this atom?
a)
48
b)
120
c)
36
d)
None of the above
9.
How many neutrons are in the nucleus of a Sodium atom with a mass number of 23?
a)
11
b)
23
c)
12
d)
35
10.
Look at the model of an atom below. Identify the name of the element based on the model.
a)
Lithium
b)
Boron
c)
Carbon
d)
None of the above
11.
The diagram below shows a model of an atom. Choose the statement that is correct.
a)
Particle Y has no charge and is located inside the nucleus
b)
Particle Y has a negative charge and is located outside the nucleus
c)
Both Particle X and Y have a positive charge
d)
Both Particle X and Y have no charge
12.
The diagram below shows a model of an atom. Which of the following could describe a subatomic particle found at location X in the diagram?
a)
It has mass and a negative charge
b)
It is located outside the nucleus in an electron cloud
c)
It is located inside the nucleus and has a positive charge
d)
It is located inside the nucleus and has a negative charge
13.
The table below lists three characteristics of an atom of an element.
An atom of which element is described by the data in the table?
a)
Radon (Rn)
b)
Cadmium (Cd)
c)
Rubidium (Rb)
d)
Astatine (At)
14.
How many protons, neutrons, and electrons are present in an atom of the element Hafnium, Hf, number 72 on the Periodic Table if it has a mass of 178?
a)
72 protons, 178 neutrons, 106 electrons
b)
72 protons, 106 neutrons, 72 electrons
c)
178 protons, 250 neutrons, 72 electrons
d)
106 protons, 72 neutrons, 106 electrons
15.
If an element has an atomic number of 6 this means it ALWAYS has
a)
6 protons in the nucleus
b)
an atomic mass of 6
c)
more than 6 neutrons
d)
6 electron clouds
16.
The atomic number of an element that has 9 protons, 9 electrons, and 10 neutrons is
a)
19
b)
9
c)
10
d)
28
17.
The central region of an atom where its neutrons and protons are is its
a)
Nucleus
b)
Electron Cloud
c)
Electron Shells
d)
Protons and Electrons
18.
Identify the total number of neutrons for the following atom.
a)
3
b)
4
c)
7
d)
None of the above
19.
Look at the square below for the element gold. What is the atomic number of gold?
a)
79
b)
197
c)
118
d)
276
20.
Look at the square below for the element Potassium. Assuming the Atomic Mass is 39 when rounded. What is the total number of neutrons for this element?
a)
19
b)
39
c)
20
d)
39.10
21.
A model of an atom is shown below. An atom of which element is represented by this model?
a)
Carbon
b)
Calcium
c)
Cobalt
d)
Cadmium
22.
Look at the square for the element Sulfur below. The arrow is pointing to a characteristic of the element. What is this arrow describing about the element?
a)
The atomic number
b)
The number of protons
c)
The number of protons and electrons
d)
The atomic mass
23.
Look at the square for the element Sulfur below. The arrow is pointing to a characteristic of the element. What is this arrow describing about the element?
a)
The atomic number
b)
The number of protons
c)
The number of protons and electrons
d)
The atomic mass
100 %
