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Structure of the Atom
Smaller Particles of Matter
Masses of Atoms
The Periodic Table
The Periodic Table, Chemical Symbols & Atomic Numbers
100
What is an abbreviated way to write an element's name, consisting of one, two, or three letters?
What is the chemical symbol.
100
What is the name for the small particles that make up protons and neutrons?
What is quarks.
100
What is the the average mass of a mixture of an element's isotopes?
What is the average atomic mass.
100
What is the name for the horizontal rows of elements in the periodic table?
What is periods.
100
What is the name for the vertical columns in the periodic table? (Hint: They are also known as families.)
What is groups.
200
What two parts of an atom are located in the nucleus?
What are protons and neutrons.
200
True or false. Scientists think that electrons are not made of any smaller particles.
What is true.
200
What is the name for atoms of the same element that have different numbers of neutrons?
What is isotopes.
200
What does periodic mean?
What is "repeated in a pattern".
200
Give the chemical symbol and atomic number of Tellurium.
What is Te and 52.
300
What is the number of protons in the nucleus?
What is the atomic number.
300
Which two parts in an atom are made of quarks?
What are protons and neutrons.
300
If you subtract the atomic number from the mass number, what do you get? (Mass number - atomic number = the number of what particle?)
What is the number of neutrons.
300
What are the elements next to the stair-step line called? (Hint: They share characteristics with both metals and nonmetals.)
What are metalloids.
300
What is the name for elements, located to the left of the stair-step line on the periodic table, that have the common characteristics of existing as solids at room temperature, being shiny, and being good conductors of electricity?
What are metals.
400
What is the region that describes where an electron is likely to be at any time?
What is the electron cloud.
400
How many quarks have scientist discovered?
What is six quarks.
400
What is a proton's mass approximately equal to? (Hint: The unit of measurement is in atomic mass units (u).
What is 1u.
400
Who created the first periodic table of elements?
What is Dimitri Mendeleev.
400
What is the name for elements, located to the right of the stair-step line on a periodic table, that do not conduct heat and electricity well?
What are nonmetals.
500
How many electrons can be on the third energy level?
What is eighteen.
500
How many quarks will make up a proton?
What is three.
500
What unit of measurement is used for the small particles in atoms?
What is the atomic mass unit (u).
500
What type of diagram uses an element's chemical symbol and dots to symbolize the electrons in the outer energy level?
What is a dot diagram.
500
Give the atomic number and element name for V.
What is 23 and vanadium.