The Expanding Universe Answers
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Use the drop-down menus to answer the questions.Which subatomic particles are indicated by the orange circles in the diagram?
A
electronsB
protonsC
neutrons2
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Which subatomic particles are indicated by the green circles in the diagram?
A
electronsB
protonsC
neutrons3
What element is represented by the atom shown in this diagram?
A
hydrogenB
heliumC
lithium4
Which statement about isotopes is correct?
A
Isotopes are different elements with different numbers of protons but the same number of neutrons.B
Isotopes are the same element with different numbers of protons and different numbers of neutrons.C
Isotopes are the same element with the same number of protons but different numbers of neutrons.5
Question text not available
A
The hydrogen nucleus loses protons.B
The oxygen nucleus gains protons.C
The bond in H2 is broken, and new bonds are formed between hydrogen and oxygen atoms.D
Each electron associated with a hydrogen atom is shared with an oxygen atom.6
The diagram shows three isotopes. What element is represented?
A
hydrogenB
heliumC
lithium7
It represents a reaction that involves rearrangement of atoms. It represents a reaction in which hydrogen nuclei and oxygen nuclei undergo change. It represents a reaction in which hydrogen electrons and oxygen electrons undergo change.
A
It represents a reaction that involves rearrangement of atoms.B
It represents a reaction in which hydrogen nuclei and oxygen nuclei undergo change.C
It represents a reaction in which hydrogen electrons and oxygen electrons undergo change.Did you find these answers helpful?
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