Elements
Compounds
Periodic Table 1
Periodic Table 2
Periodic Table 3
100
What is a pure substance that cannot be separated into simpler substances by physical or chemical means?
What is an element?
100
What is a pure substance composed of two or more elements that are chemically combined?
What is a compound?
100

How many valence electrons does Neon have?

8

100

How many valence electrons do the elements in the 4th main group have?

4

100
How is the periodic table arranged?
What is by atomic number?
200
What is a chemical property of an element?
What is flammability?
200
What are the two ways to break a compound?
What is apply heat or an electric current?
200
What is the number of protons in the nucleus of an atom and is the number above the chemical symbol?
What is atomic number?
200
What is the weighted average of the masses of all the naturally occurring isotopes of that element and is the number below the chemical symbol on the periodic table?
What is atomic mass?
200
How many electrons are in the first energy level of an atom?
What is two electrons except hydrogen has one electron in the first energy level?
300

What are the three major categories of elements?

What is metals, nonmetals, and metalloids?

300
What are the smallest unit of an element that maintains the properties of that element?
What are atoms?
300
Use the periodic table and find the atomic number of Thallium and identify it as a metal, nonmetal, or metalloid.
What is 81 and metal?
300
Find the atomic mass of Selenium.
What is 79.0?
300
How many valence electrons can the next energy level have up to?
What is 8 valence electrons?
400

What are elements that have properties of metals and nonmetals; can be shiny or dull and some are malleable and ductile and can conduct heat and electric current well?

What is a metalloid?

400
What is a small, dense, positively charged center of an atom that contains most of the atom's mass. It contains protons and neutrons.
What is nucleus?
400
Use the periodic table and find the atomic number of Ruthenium and identify it as a metal, nonmetal, or metalloid.
What is 44 and metal?
400

Find the atomic number for gold

79

400
If groups 13-18 have 10 fewer valence electrons than their group number, how many valence electrons does neon have?
What is 8 valence electrons?
500
What is the difference between metals and nonmetals?
What is metals are malleable and ductile and nonmetals are brittle and unmalleable?
500
What charges do electrons, protons, and neutrons have?
What is electrons have a negative charge, protons have a positive charge, and neutrons have no charge?
500
Use the periodic table and find the atomic number of Sulfur and identify it as a metal, nonmetal, or metalloid.
What is 16 and nonmetal?
500
Find the atomic mass of Barium?
What is 137.3?
500
If groups 1 and 2 have the same number of valence electrons as their group number, how many valence electrons does sodium have?
What is 1 valence electron?
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