Atoms and Molecules
Other
3 plays
8 questions
Question 1
Multiple Choice
1 point
Sodium (Na), lithium (Li), and potassium (K) are grouped together in one column on the periodic table. Which property do they share?
A.soft texture
B.high reactivity
Correct Answer B
high reactivity
C
semiconductivity
D
gas at room temperature
C.semiconductivity
D.gas at room temperature
Question 2
Multiple Choice
1 point
Which best explains how elements are arranged on the modern periodic table?
A.Elements are arranged from most protons to fewest protons.
B.Elements are arranged from fewest protons to most protons.
C.Elements are arranged from fewest neutrons to most neutrons.
D.Elements are arranged from most neutrons to fewest neutrons.
Question 3
Multiple Choice
1 point
Which subatomic particles determine the reactivity of groups of elements in the periodic table?
A.electron
B.proton
C.nuetron
D.atom
Question 4
Multiple Choice
1 point
How many atoms are in the molecule CO2?
A.one
B.two
C.three
D.four
Question 5
Multiple Choice
1 point
How do atoms and molecules stick together?
A.Interaction between protons.
B. Interactions between positive and negative charges.
C.Glued together with Elmer'sā glue.
D.Interactions between neutrons
Question 6
Multiple Choice
1 point
On a periodic table how many protons does carbon have?
A.six
B.three
C.five
D.eleven
Question 7
Multiple Choice
1 point
Is it possible to see one molecule with the technology we have now?
A. Not usually, unless you use a very powerful, expensive microscope.
B.Yes, you can see nitrogen under a regular microscope.
C.No, science cannot even know the size of an atom or a molecule.
D.Yes, you just need to have slightly better vision than we do now.
Question 8
Multiple Choice
1 point
What is the problem with drawing models of atoms?
A.Very difficult to scale the size of the particles.
B.Electrons would be too far from the nucleus to show on paper
C.It takes billions to be able to see them
D.All the above