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ATOMS
MOLECULES
ELEMENTS
PERIODIC TABLE
MATTER and Carbon
100
An atom is the simplest particle of _____________ that can exist.
What is matter?
100
A molecule is two or more _______________ bonded together.
What are atoms?
100
The ________________________ organizes all known elements.
What is the Periodic Table?
100
The Period Table of Elements categorizes elements according to the properties of their ______________, which are the smallest unit of an element.
What are atoms?
100
What is matter that is comprised of only one type of atom?
What is an element?
200
Particle of an atom with a negative charge.
What is an electron?
200
Atoms bond together to create molecules by either gaining or losing these.
What are electrons?
200
The letter abbreviation of an element is called the ___________________.
What is the element symbol or chemical symbol?
200
Elements are listed by the number of protons in the atom’s nuclei. What is this number called?
What is the atomic number?
200

Carbon can form 4 bonds but only has 2 electrons in the outer shell following the Aufbau rule. What is the name of the process that carbon undergoes that allows it to form 4 covalent bonds?

What is hybridization?

300
Particle of an atom with a positive charge, located in the ____________.
What is a proton/nucleus?
300
Each shell can hold only a certain number of _____________ which determines what kind of atoms each atom can __________________ with.
What are electrons/bonds?
300

Elements that re negatively charged are called __________, and elements positively charged are called___________.

What is a cation and anion?

300
What does the number of protons plus the number of neutrons equal?
What is the atomic mass?
300

Molecules composed solely by C and H with only single bonds are called_______________.

What is alkanes (hydrocarbons could have single, double or triple bonds)?

400
What do electrons orbit around the nucleus in?
What is electron shell or electron cloud?
400

Number of electrons shared between two atoms in a bond?

What is two?

400
If the element gold has 79 protons and 118 neutrons, how many electrons does it have?
What is 79 electrons?
400
What are horizontal categories of the period table? These categories determine how many electron shells an element’s atoms have.
What are periods?
400

Head to head p orbitals form _________ bonds.

What is σ (Sigma) bond?

500
The number of ________________ in an atom is equal to the number of _________________ in an atom.
What are protons/electrons?
500

A water molecule is represented as H2O. How many hydrogen and oxygen atoms are in this molecule?

What are 2 hydrogen and 1 oxygen atoms?

500
If you know the atomic number and the atomic mass of an element, how do you calculate the number of neutrons in an element’s atom?
What is atomic mass – atomic number = # of neutrons
500
What are vertical categories of the period table? These categories indicate how many electrons are in an atom’s outer shell.
What are groups?
500

Side to side p orbitals form ___________________ bonds.

What is π (pi) bond?