WorksheetsAtoms and the Periodic Table
Total questions: 36
Worksheet time: 18mins
Name
Class
Date
1.
1. Which subatomic particle can NOT be changed?
a)
Nucleus
b)
Proton
c)
Neutron
d)
Electron
2.
2. Where are electrons likely to be found?
a)
Nucleus
b)
Electron Clouds
c)
Mixed Throughout an Atom
d)
In the neutrons of an atom
3.
3. Which of the following has the least mass?
a)
Nucleus
b)
Proton
c)
Neutron
d)
Electron
4.
4. Which elements share similar chemical properties? (Check their location on the periodic table.)
a)
O and Al
b)
Mg and K
c)
K and Na
d)
Na and Ne
5.
5. An atom of Carbon has 6 protons, 6 electrons, and 6 neutrons. What is the mass number of that atom of Carbon?
a)
6
b)
18
c)
12
d)
15
6.
6. Which two statements about isotopes are true?
a)
They have the same number of protons
b)
They have the same number of neutrons
c)
They have a different atomic number
d)
They have a different atomic mass
7.
7. What is a vertical column on the Periodic Table referred to as?
a)
Period
b)
Group/Family
c)
Element
d)
Property
8.
8. How do you determine the number of Neutrons in a nucleus?
a)
Add the Atomic Mass and the Atomic number
b)
Subtract the Mass number and the Atomic Number
c)
Add the Protons and Electrons
d)
It is written on the Periodic Table
9.
9. Which atom has a full outer energy level? (Check the Periodic Table for grouping.)
a)
Li
b)
O
c)
B
d)
Ne
10.
10. What are the left-to-right rows on the periodic table?
a)
Periods
b)
Groups/Families
c)
Element
d)
Property
11.
11. The Periodic Table is organized by which of the following?
a)
Atomic Number
b)
Atomic Mass
c)
Alphabetically
d)
Numbers of Neutrons
12.
12. The atomic number of an atom is the total number of what in the nucleus?
a)
Protons
b)
Protons + Neutrons
c)
Protons + Electrons
d)
Neutrons
13.
13. If a Boron atom has 5 protons, 6 neutrons, and 5 electrons. What is the mass number of the Boron atom?
a)
10
b)
5
c)
6
d)
11
14.
14. If Lithium has an atomic number of 3 and an mass number of 7. How many neutrons does it have?
a)
3
b)
7
c)
10
d)
4
15.
15. Beryllium has an atomic number of 4 and an mass number of 9. How many protons does it have?
a)
4
b)
9
c)
5
d)
13
16.
16. Which of these best describes an atom?
a)
A particle of matter that carries an overall positive charge.
b)
A particle of matter that is formed by the bonding of two or more molecules.
c)
The smallest particle of an element that shows all the properties of that element.
d)
The smallest particle of an element that can be broken down further to form molecules.
17.
17. Which two elements are isotopes of the same element?
a)
Atom-1 and Atom-2
b)
Atom-1 and Atom-3
c)
Atom-2 and Atom-3
d)
Atom-3 and Atom-4
18.
18. Which group contains elements whose atoms have 6 electrons in their outer energy level?
a)
Group 2
b)
Group 6
c)
Group 16
d)
Group 18
19.
19. Which statement is true about the final atom created? (Select all that apply.)
a)
It has 2 more protons than the starting atom.
b)
It has 2 less electrons than the starting atom.
c)
Magnesium (Mg) has formed a +2 cation.
d)
Magnesium (Mg) has formed a -2 anion.
20.
20. The elements Neon and Argon are not reactive. Which hypothesis best explains this?
a)
They are not stable atoms, because of this other atoms remain distant.
b)
They are not readily available on Earth.
c)
They tend to give up all their valence electrons easily.
d)
They have the maximum possible number of electrons in their outermost shell.
21.
21. The table lists the number of protons and neutrons contained in four different atoms. Which two atoms are isotopes of the same element?
a)
Atom - A and Atom - B
b)
Atom - A and Atom - C
c)
Atom - B and Atom - C
d)
Atom - C and Atom - D
22.
22. A scientist is measuring the mass of two Boron (B) atoms. One atom has a mass of 10 units. The other atom has a mass of 11 units.
This is a model of a Boron atom with a mass of 11 units.
What subatomic particle needs to be removed from the model to represent a Boron atom with a mass of 10 units?
a)
Particle L
b)
Particle M
c)
Particle N
d)
Particle P
23.
31. How many protons are in a Sodium (Na) atom?
a)
8
b)
11
c)
12
d)
23
24.
32. How many electrons are in a neutral Sodium atom?
a)
8
b)
11
c)
12
d)
23
25.
33. How many neutrons are in an average Sodium-23 atom?
a)
8
b)
11
c)
12
d)
23
26.
34. When drawing a Bohr's Model, what is the maximum number of electrons that can be placed on the first energy level?
a)
2
b)
8
c)
10
d)
11
27.
35. When drawing a Bohr's Model, what is the maximum number of electrons that can be placed on the second energy level?
a)
2
b)
8
c)
10
d)
11
28.
36. When drawing a Bohr's Model, what is the maximum number of electrons that can be placed on the third energy level?
a)
1
b)
2
c)
18
d)
11
29.
37. Using the picture below, explain why these Carbon (C) atoms are isotopes.
a)
They are carbon atoms that have the same number of protons AND the same number of neutrons.
b)
They are carbon atoms that ONLY have the same number of protons but differ in the number of neutrons.
c)
They are carbon atoms that ONLY have the same number of protons but have different mass numbers.
d)
They are carbon atoms that have the same number of protons, a different number of neutrons AND a different mass number
30.
***Many people believe that the atomic number of the atom is the number of electrons in the atom. Describe when this is the case.
a)
As the atom absorbs photons the electrons excite and produce unique emission spectrum.
b)
Through radioactive decay the electrons and neutrons form unique atomic number isotopes.
c)
Whether the atom is neutral or charged the number of electrons is always a unique identifier.
d)
When the atom is neutral and the number of electrons and the number of protons are equal.
31.
**What can be concluded about the atom from knowing that oxygen-18 has an atomic number of 8?
a)
This oxygen isotope contains 8 electrons, 8 protons, and 10 neutrons.
b)
An oxygen atom that includes 8 baryons, 9 prions, and 10 neutrons.
c)
It's an oxygen allotrope incorporates 7 electrons, 7 protons, and 7 quarks.
d)
The oxygen configuration consists of 6 electrons, 8 photons, and 10 neutrons.
32.
***What conclusions can be drawn about the existence of nitrogen-14 and nitrogen-15?
a)
They are the same form of nitrogen and they include the same number of electrons and neutrons but each contains a different number of protons - 7 and 8 respectively.
b)
They are several allotropes of nitrogen and they accommodate the same number of neutrons but each contains a different numbers of protons and electrons - 7 and 8 respectively.
c)
They are isotopes of nitrogen and they contain the same number of protons and electrons but each contains a different number of neutrons - 7 and 8 respectively.
d)
They are different configurations of nitrogen and they consist of the same number of protons and neutrons but each contains a different number of electrons - 7 and 8 respectively.
33.
*Radon (Rn) is the heaviest naturally radioactive ________________ gas.
a)
diatomic
b)
group 1
c)
halogen
d)
noble
34.
**Consider the elements in the periodic table. The stair-step line between the pink squares and the yellow squares separates the ___________ (pink) from the _____________ (yellow).
a)
metals; nonmetals
b)
gases; solids
c)
nonmetals; metals
d)
reactive; nonreactive
35.
*A researcher is trying to create a new super conductive wire. Which category on the periodic table should he or she look in first?
a)
metals
b)
non-metals
c)
metalloids
d)
noble gases
36.
**Consider the elements in the periodic table. As we move to the far right, the last column is made up of _________ that are __________.
a)
metals; stable/nonreactive
b)
noble gases; stable/nonreactive
c)
metalloids; unstable/reactive
d)
noble gases; unstable/highly reactive
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