Atomic Structure
Periodic Table
Math in Science
Electron Neutron or Proton
Models
Hard
100
Describe the location of the subatomic particles in an atom.
Protons and neutrons are inside the nucleus, and electrons circle around it.
100
A neutral atom has an atomic mass of 40. The atom has 20 electrons orbiting the nucleus. Which element is this atom?
calcium
100
An atom has 15 protons, an atomic mass of 31 and a neutral charge. How many neutrons would the atom have?
Sixteen neutrons because 15 protons plus 16 neutrons is an atomic mass of 31.
100
Which part of an atom moves around shells circling the center of an atom?
electrons
100
Mr. Raya asked his class to make models of a carbon atom with an atomic mass of 12. Jayden has created the following model. What does Jayden need to add to his model?
Jayden should add 6 neutrons to give it an atomic mass of 12.
100
How many elements are on the periodic table?
118
200
What are the electrical charges of the subatomic particles in an atom?
Protons - positive
electron - negative
neutron - neutral
200
A student is using the periodic table to draw models of atoms. They are asked to make a model of the element magnesium. How many protons should be placed in the nucleus of this model?
12 protons
200
Which two particles have a mass of one amu each?
protons and neutrons
200
Which part of the atom is small in size but contains most of the atom's mass?
nucleus
200
What element does this model represent?
The atom is carbon because carbon has an atomic number of six and there are six protons in the model.
200
The periodic table is organized into vertical groups of
elements with similar properties.
300
How are Neutrons different from Protons?
They maintain a neutral charge.
300
Name the elements for Atom 1, Atom 2, and Atom 3.
Atom 1 is carbon, Atom 2 is oxygen, and Atom 3 is sodium
300
Based on the periodic table, how many neutrons are present in an atom of Neon (Ne) with an atomic mass of 20?
10
300
Which subatomic particles have the smallest size?
electrons
300
What is the atomic structure model that depicts electrons orbiting a nucleus?
BOHR model
300
Place the following elements in order from MOST reactive to LEAST reactive.
Carbon Potassium Magnesium Helium
Potassium, Magnesium, Carbon, Helium
400
How many electrons can fit on the 2nd, and 3rd, energy levels for the atoms we are drawing?
8
400
Which two elements have properties that are the most similar to Argon
?
Neon and Helium
400
What is in the nucleus of a silicon atom?
14 protons, 14 neutrons
400
What subatomic particle determines the identity of an atom?
proton
400
For a science assignment, Jill is asked to draw a Bohr model of an Oxygen atom. The Periodic table entry for Oxygen is included for reference.Tell how many subatomic particles and the locations she should include in her model.
8 protons inside the nucleus
8 neutrons inside the nucleus
8 electrons outside of the nucleus
400
When sodium is mixed with water, an explosion takes place. Based on its location on the periodic table, how will potassium behave with water?
Potassium is in the same family as sodium, so it will also explode when mixed with water.
500
Marco claims that removing all the neutrons from an atom will change the atom’s overall charge. Why is Marco incorrect?
Marco is incorrect because neutrons have no charge and do not affect the atom’s overall charge.
500
Bernardo draws this model and claims that it shows an atom of lithium.
Is he correct? Explain why or why not.
NO, Lithium needs 3 protons, 3 electrons, and 4 neutrons
500
Dennis draws an atomic model for fluorine (F) using the periodic table. In the nucleus, he draws nine protons and nine neutrons. He draws nine electrons outside of the nucleus. Is his drawing correct? Why or why not?
No, fluorine should have 10 neutrons.
500
What does APE stand for?
Atomic number = Protons = Electrons
500
Eliana creates a model of an atom of the element sodium (Na). She uses white pompoms to represent electrons, black pompoms to represent neutrons, and yellow pompoms to represent protons. Using the periodic table, how many of each pompom does she need?
11 white pompoms (e)
12 black pompoms (n)
11 yellow pompoms (p)
500
Using the periodic table, Maria drew a diagram of a neon atom.
Which mistake did Maria make on her diagram?
The nucleus should have protons and neutrons, not protons and electrons.