WorksheetsAtoms
Total questions: 50
Worksheet time: 50mins
What is the smallest particle of an element; made of electrons, protons, and neutrons?
Atom
Electron
Nuclear Model of the Atom
Scientific Notation
What is the mass of an atom, approximately equal to the number of protons and neutrons in the atom?
Atomic Mass
Electron Cloud
Nucleus
Subatomic Particles
What is a property of matter determined by the number of positively charged protons and negatively charged electrons in a material?
Electrical Charge
Neutron
Proton
Atom
What is a negatively charged subatomic particle located in the electron cloud; involved in the formation of chemical bonds?
Electron
Nuclear Model of the Atom
Scientific Notation
Atomic Mass
What is the area surrounding the nucleus of an atom where the electrons are found?
Electron Cloud
Nucleus
Subatomic Particles
Electrical Charge
What is a neutrally charged subatomic particle located in the nucleus of an atom; contributes to the mass of the atom?
Neutron
Proton
Atom
Electron
What is a conceptual model of the atom in which a small, positively charged nucleus is surrounded by planetary electrons?
Nuclear Model of the Atom
Scientific Notation
Atomic Mass
Electron Cloud
What is the tiny, very dense, positively charged region in the center of an atom that is made up of protons and neutrons?
Nucleus
Subatomic Particles
Electrical Charge
Neutron
What is a positively charged subatomic particle located in the nucleus of an atom; contributes to the mass of the atom?
Proton
Atom
Electron
Nuclear Model of the Atom
What are numbers written in terms of a decimal number between one (1.0) and ten (10.0) multiplied by a power of ten; for example, the scientific notation for 10,492 is 1.0492 x 10⁴?
Scientific Notation
Atomic Mass
Electron Cloud
Nucleus
What are particles that are smaller than the atom?
Subatomic Particles
Electrical Charge
Neutron
Proton
What is an atom?
A molecule made up of two or more different elements.
The smallest unit of an element that retains its chemical properties.
A fundamental particle that makes up the nucleus of an atom.
A type of subatomic particle found in the electron cloud.
What are the subatomic particles that make up an atom?
Electrons, protons, and photons.
Neutrons, electrons, and quarks.
Electrons, protons, and neutrons.
Positrons, electrons, and muons.
How are protons and neutrons similar?
Both protons and neutrons have a negative charge.
Protons and neutrons are both found in the electron cloud of an atom.
Protons and neutrons are both fundamental particles.
Both protons and neutrons are located in the nucleus of an atom.
What determines the mass of an atom?
The number of electrons in the atom.
The total number of subatomic particles in the atom.
The number of protons and neutrons in the atom.
The atomic number of the atom.
How do electrons differ from protons and neutrons?
Electrons have a positive charge, while protons and neutrons have a negative charge.
Electrons are located in the nucleus of an atom, while protons and neutrons are in the electron cloud.
Electrons have a much smaller mass compared to protons and neutrons.
Electrons are found in the nucleus of an atom, while protons and neutrons orbit the nucleus.
What are the electrical charges of electrons, protons, and neutrons?
Electrons are negatively charged, protons are positively charged, and neutrons are electrically neutral.
Electrons are positively charged, protons are negatively charged, and neutrons are electrically neutral.
Electrons, protons, and neutrons all have the same positive charge.
Electrons, protons, and neutrons all have the same negative charge.
How do the number of protons and electrons in an atom affect its electrical charge?
The number of protons and electrons have no effect on the electrical charge of an atom.
If the number of protons is greater than the number of electrons, the atom has a positive charge; if the number of electrons is greater, the atom has a negative charge.
If the number of protons is greater than the number of electrons, the atom has a negative charge; if the number of electrons is greater, the atom has a positive charge.
The electrical charge of an atom is determined solely by the number of neutrons it contains.
What makes up an atom?
Electrons, protons, and neutrons.
Molecules and compounds.
Elements and ions.
Isotopes and electrons.
What is the difference in sizes among subatomic particles?
Electrons are larger than protons and neutrons.
Protons are larger than electrons and neutrons.
Neutrons are larger than electrons and protons.
Electrons are much smaller than protons and neutrons.
Where are protons, neutrons, and electrons located in the atom?
Protons are located in the electron cloud, neutrons are found in the nucleus, and electrons orbit the nucleus.
Protons and neutrons are located in the nucleus, while electrons are in the electron cloud surrounding the nucleus.
Protons, neutrons, and electrons are all located in the electron cloud surrounding the nucleus.
Protons are found in the electron cloud, neutrons orbit the nucleus, and electrons are located in the nucleus.
Which of the following statements provides the most accurate description of atoms?
Positively charged particles
The smallest unit of an element
Combinations of elements
Particles too small to have mass
How should Jack utilize beads in constructing a model to illustrate the behavior of atoms within a liquid effectively?
The beads should be attached to each other and not move.
The beads should move back and forth in the same place.
The beads should be far apart and move very fast.
The beads should be able to slide past each other.
Which of the following provides a list of the two particles that are commonly found together within an atom's nucleus?
Photons and ions
Neutrons and electrons
Protons and neutrons
Electrons and protons
In Hunter's drawing depicting gas atoms moving freely at high speeds, what adjustments should he make to the illustration to accurately represent the same substance in the solid phase?
There should be increased movement of the atoms.
Atoms should be closely packed together.
There should be very wide spaces between the atoms.
The shape of atoms must be the shape of the container.
The diagram displays an atom divided into two regions: the nucleus (1) and the region surrounding the nucleus (2). What is the distribution of protons, neutrons, and electrons within the atom?
Protons and neutrons in region 1, electrons orbiting in region 2
Protons and electrons in region 1, neutrons orbiting in region 2
Electrons and neutrons in region 1, protons orbiting in region 2
Protons in region 1, neutrons and electrons orbiting in region 2
How should Morgan employ beads in constructing a model to effectively depict the motion of atoms in a gas?
The beads should be able to move around each other.
The beads should be glued together and not move.
The beads should be far apart and move very fast.
The beads should vibrate slowly in the same place.
Which of the following accurately identifies the three smaller constituents that compose atoms?
Neutrons, protons, and ions
Neutrons, electrons, and protons
Protons, ions, and electrons
Electrons, neutrons, and ions
In Luis's depiction of solid-state atoms, where atoms are closely packed and vibrating while maintaining their relative positions, what modifications should he implement in the illustration to faithfully portray the same substance in the liquid phase?
There should be increased movement of the atoms.
Each individual atom should be much larger.
There should be very wide spaces between the atoms.
The shape of atoms must be the shape of the container
What is the term for the smallest individual unit of an element?
Nucleus
Particles
Cell
Atom
In Kaylee's drawing depicting liquid-state atoms, where atoms are loosely packed, vibrating, and moving around each other, what adjustments should she implement in the illustration to accurately represent the same substance in the gas phase?
There should be less space between the atoms.
Each individual atom should be much larger.
There should be very wide spaces between the atoms.
The shape of atoms must be the shape of the container.
How many protons does an atom of this element have?
(a)
How many protons does an atom of this element have?
(a)
How many neutrons does an atom of this element have?
(a)
How many neutrons does an atom of this element have?
(a)
How many electrons does a neutral atom of this element have?
(a)
How many electrons does a neutral atom of this element have?
(a)
What is the symbol for this element?
(a)
What is the symbol for this element?
(a)
What is the name of this element?
(a)
What is the name of this element?
(a)
What is the atomic mass of an atom of this element?
(a)
What is the atomic mass of an atom of this element?
(a)
How many valence electrons does a neutral Magnesium atom have?
2
8
12
10
How many valence electrons does a neutral Chlorine atom have?
2
8
7
17
Which atomic model best represents a neutral Potassium atom?
Which atomic model best represents a neutral Lithium atom?
How many electrons would an 13AL3+ cation have?
13
10
16
27
How many electrons would a 15P3- anion have?
15
18
12
31
Which atomic model best represents a 11Na+ cation?
