WorksheetsUnit 1 Chemistry Definitions Quiz
Total questions: 30
Worksheet time: 15mins
What is the definition of an anion?
A positively charged ion
A negatively charged ion
A neutral atom
An atom with no electrons
Which term describes the smallest unit of an element that retains the properties of that element?
Molecule
Atom
Compound
Ion
What is a binary compound?
A compound made of three elements
A compound made of two elements
A compound made of metals only
A compound made of non-metals only
What is a cation?
A negatively charged ion
A positively charged ion
A neutral atom
An atom with extra neutrons
What is a chemical bond?
The force that holds atoms together in a compound
The process of breaking atoms apart
The movement of electrons in an atom
The formation of ions
What does a chemical formula represent?
The number of protons in an atom
The types and numbers of atoms in a compound
The mass of a molecule
The charge of an ion
What is chemical nomenclature?
The study of chemical reactions
The system of naming chemical compounds
The measurement of chemical quantities
The process of forming ions
Which term describes a substance made of two or more different elements chemically combined?
Element
Compound
Mixture
Solution
What is a covalent bond?
A bond formed by the transfer of electrons
A bond formed by the sharing of electrons
A bond formed by the loss of neutrons
A bond formed by the attraction of ions
What is an electron?
A positively charged particle in the nucleus
A negatively charged particle outside the nucleus
A neutral particle in the nucleus
A particle with no charge
What is the electron cloud?
The area where protons are found
The region around the nucleus where electrons are likely to be found
The space occupied by neutrons
The area where ions are formed
What is an element?
A substance made of two or more atoms
A pure substance made of only one kind of atom
A mixture of compounds
A solution of ions
What is a family in the periodic table?
A group of elements with similar properties
A single element
A compound formed from two elements
A mixture of metals
What is an ionic bond?
A bond formed by sharing electrons
A bond formed by transferring electrons
A bond formed by sharing neutrons
A bond formed by the attraction of molecules
What are ions?
Atoms with no charge
Atoms or molecules with a net electric charge due to the loss or gain of electrons
Atoms with extra neutrons
Atoms with extra protons
What is a group in the periodic table?
A row of elements
A column of elements
A mixture of elements
A type of bond
What is a metal?
An element that is typically shiny, malleable, and conducts electricity
An element that is dull and brittle
An element that does not conduct electricity
An element that is a gas at room temperature
What is a metalloid?
An element with properties of both metals and non-metals
An element that is only a metal
An element that is only a non-metal
An element that is a compound
What is a molecule?
A single atom
Two or more atoms bonded together
A mixture of compounds
A group of ions
What is a neutron?
A positively charged particle
A negatively charged particle
A neutral particle in the nucleus
A particle outside the nucleus
What is a non-metal?
An element that is shiny and conducts electricity
An element that is typically dull, brittle, and does not conduct electricity
An element that is a liquid at room temperature
An element that is a metalloid
What is the nucleus of an atom?
The region where electrons are found
The central part of the atom containing protons and neutrons
The area outside the atom
The space where ions are formed
What is oxidation number?
The number of protons in an atom
The charge an atom would have if electrons were transferred completely
The number of neutrons in an atom
The number of atoms in a molecule
What is the periodic table?
A chart that organizes elements by increasing atomic number
A list of chemical compounds
A table of chemical reactions
A chart of molecules
What does phase refer to in chemistry?
The type of chemical bond
The physical state of matter (solid, liquid, gas)
The number of atoms in a molecule
The charge of an ion
What is a proton?
A negatively charged particle
A positively charged particle in the nucleus
A neutral particle in the nucleus
A particle outside the nucleus
What are valence electrons?
Electrons in the innermost shell
Electrons in the outermost shell of an atom
Protons in the nucleus
Neutrons in the nucleus
Which of the following best explains why metals are good conductors of electricity?
Metals have tightly bound electrons
Metals have free-moving valence electrons
Metals have no electrons
Metals are always in the gas phase
Given the chemical formula H2O , identify the elements present and the number of atoms of each.
Hydrogen (1), Oxygen (2)
Hydrogen (2), Oxygen (1)
Hydrogen (2), Oxygen (2)
Hydrogen (1), Oxygen (1)
Explain how the oxidation number of sodium changes when it forms an ionic bond with chlorine.
Sodium’s oxidation number increases from 0 to +1
Sodium’s oxidation number decreases from 0 to -1
Sodium’s oxidation number remains 0
Sodium’s oxidation number increases from +1 to +2
