Identify the three parts of the atom and their charges.
What is the proton (+), electron (-), neutron (0)?
100
This pure substance cannot be broken down or separated into simpler substances by physical or chemical means.
What is an element?
100
The physical and chemical properties of the elements repeat in a pattern across these "seven horizontal rows."
What are the periods?
100
More than 90 of the elements belong to this class on the periodic table.
What are the metals?
100
Malleable, ductile, shiny and conductive are properties of this class of elements.
What are the Metals?
200
These two subatomic particles have opposite charges and keep the atom "neutral."
What is the proton and the electron?
200
This number is used to identify an element and is equal to the number of protons in its nucleus.
What is the atomic number or number of protons?
200
Elements are arranged by this number as it increases from left to right across the periodic table.
What is the atomic number?
200
This group of elements have a full outer shell and do not usually react with any other elements.
What are the noble gases?
200
These semi-conductors can be found bordering the zigzag line between the metals and nonmetals.
What are the metalloids?
300
Most of the mass of the atom comes from these two particles located in the nucleus.
What is a proton and a neutron?
300
Identify the elements in the following formula: NaCl
What are sodium and chlorine?
300
In what order are the three major classes of the periodic table arranged from left to right?
What are the metals, metalloids, and nonmetals?
300
This most reactive group of soft, silvery metals can easily give away their atoms’ one valence electron.
What are the Alkali Metals?
300
Most of the elements in this class are gases, brittle, poor conductors, and dull.
What are the nonmetals?
400
This charged particle forms when an atom gains or loses an electron.
What is an ion?
400
This element does not belong to any one group on the periodic table because it is has properties of both metals and nonmetals.
What is hydrogen (H)?
400
Because they share similar chemical and physical properties, elements are placed in one of these 18 vertical columns.
What is a family or group?
400
This very reactive group of nonmetals only need one valence electron to complete their outer shell.
What are the Halogens (Group 17)?
400
Located between the Alkali-Earth Metals and Boron Group, these 10 groups do not have individual names but contain valuable metals such as gold, silver, and copper.
What are the Transition Metals?
500
This is an atom that has the same number of protons as other atoms of the same element do but has a different number of neutrons.
What is an isotope?
500
Use the periodic table to figure out how many protons, neutrons, and electrons are in Potassium (K).
What is ...protons = 19, electrons = 19 and neutrons = 20?
500
A periodic square contains these four pieces of information about every element.
What is the (1) chemical symbol, (2) chemical name, (3) atomic number, and (4) mass number
500
The properties of elements in a group are similar because the atoms have the same number of these particles in their outer energy level.
What are the "valence electrons?"
500
These radioactive transition metals belong in periods 6 and 7, but have been placed at the bottom of the table to make it easier to read.