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# Test Questions with Chemistry Images

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Kayla draws the image shown as part of her physical science homework.

What did Kayla draw?
1. Bohr model
2. Lewis structure
3. Molecular formula
4. Structural formula
Which ion's configuration matches that of the noble gas whose electron-dot diagram is below?
1. $"N"^"3-"$
2. $"Rb"^"+"$
3. $"Ca"^"2+"$
4. None of the above
What is true about the following element?
1. It gains 3 valence electrons to form an ion.
2. It loses 5 valence electrons to form an ion.
3. It loses 3 valence electrons to form an ion.
4. It gains 5 valence electrons to form an ion.
Given the number of valence electrons shown in the diagram, what can you conclude about this element?
1. It is nonreactive.
2. It only reacts with elements with 6 valence electrons.
3. It is reactive with elements that have 1 valence electron.
4. None of the above
Grade 8 Periodic Table and Elements
The diagram shows the electron-dot diagram of potassium. What does potassium do with electrons to become stable?
1. It gains 1 valence electron.
2. It gains 2 valence electrons.
3. It loses 1 valence electron.
4. It loses 2 valence electrons.
The diagram represents Rutherford's Gold Foil experiment. Which statement is a conclusion that came from this experiment?
1. Electrons orbit the nucleus in rings at set distances.
2. The nucleus of an atom is made of protons and neutrons.
3. The probable location of electrons can be predicted using a cloud model.
4. Most of an atom is empty space and its mass is concentrated in its center.
Grade 8 Periodic Table and Elements
The electron-dot diagram below represents which of the following?
1. All of the electrons in sodium
2. The valence electrons in sodium
3. The electrons in the first energy level
4. None of the above
Grade 9 Periodic Table and Elements
In which group would you place the element below?
1. Group 1
2. Group 7
3. Group 17
4. Group 18
Grade 10 Periodic Table and Elements
Which family is the following element in?
1. Noble gases
2. Alkaline earth metals
3. Alkali metals
4. Halogens