ATOMS
ELEMENTS
PERIODIC TABLE
MATTER
100
An atom is the simplest particle of _____________ that can exist.
What is matter?
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
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
What are the states of matter?
What is solid, liquid, gas?
300
Particle of an atom with a positive charge, located in the ____________.
What is a proton/nucleus?
300
The configuration of protons, neutrons and electrons in an element’s atom is what makes one element _______________________ from another element.
What is different or unique?
300
What does the number of protons plus the number of neutrons equal?
What is the atomic mass?
300
As ___________ is added to molecules, the molecules move further apart.
What is energy?
400
What do electrons orbit around the nucleus in?
What is electron shell or electron cloud?
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
The process of matter changing from a solid to a liquid is called _________________.
What is melting?
500
The number of ________________ in an atom is equal to the number of _________________ in an atom.
What are protons/electrons?
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
The process of matter changing from a gas to a liquid is called ___________________.
What is condensation?
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