Atoms
Arrangement of The Periodic Table
Trends in The Periodic Table
Miscellaneous
100
The electrons in an atom are orbiting in ______ around the nucleus of an atom.
What are shells?
100
Each vertical column on the periodic table is called a(n
What is group/family?
100
Most of the elements in the periodic table are
What are "metals"?
100
Which of the following is an element? --->carbon dioxide --->sugar --->salt water --->iron
What is "iron"?
200
A student is examining a solid piece of the element sulfur. What is the smallest component that defines this material being sulfur
What is an atom?
200
The horizontal row on the periodic table is called a(n
What is period?
200
Which statement best describes the difference between the elements in group IIA and group VIIIA in the periodic table?
What is "IIA are reactive metals, and VIIIA are unreactive gases"?
200
Why is Hydrogen so special?
What is (any of the following): --->It’s properties do not match those of any other group of elements --->It is very reactive with oxygen. --->It is the most abundant element in the universe All of the Above!
300
What was in the center of an atom called?
What is the nucleus?
300
True/False Elements that are the most "metallic" (most metal like) are farthest to the right on the periodic table.
What is "False"? (Elements that are the most metallic are farthest to the left on the periodic table.)
300
How does the number of electrons in the outer level of the elements change as you move from left to right across the periodic table?
What is "the number of electrons increases"?
300
Barium is in Period 6 and Group IIA. How many valence electrons does it have and how many electron shells does it have? (must answer in correct order)
What is "2" and "6"?
400
An atom of carbon with 6 protons, 6 electrons, and 6 neutrons would have a mass number of
What is 12?
400
True/False The atomic number (# of protons) is usually listed above the element's symbol/name and the atomic mass (# of protons+neutrons) is usually listed below the elements symbol/name.
What is "true"?
400
Why do elements in the same group share similar properties?
What is "the have the same number of electrons in their outer energy level"?
400
Why are the noble gases unreactive?
What is "they have a full outer shell of 8 electrons"?
500
An atom has an atomic mass of 14 and an atomic number of 7. How many neutrons does the atom have?
What is 7?
500
How do the physical and chemical properties of the elements change?
What is "across each period"?
500
Sodium (Na) is a very reactive alkali metal and Chlorine (Cl) is a very reactive halogen nonmetal. When they combine, they react to form Sodium Chloride (NaCl) which is known as table salt. Which of the following best explains why sodium and chlorine so react so easily?
What is "alkali metals easily give away their single electron in the outer level and halogens only need one electron to fill their outer level"?
500
How did Mendeleev contribute to the development of the Periodic Table?
What is (either of the following): --->He built upon other scientists’ work by arranging the known elements into repeating patterns --->The table he arranged showed other scientists where there may be places for unknown elements. Both of the Above!
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