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10 Questions

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Atomic Structure

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Questions and Answers

What are the smallest parts of an element that can take place in chemical reactions?

Protons

Electrons

Atoms (correct)

Neutrons

What is the overall charge of the nucleus of an atom?

Negative

Neutral

Positive (correct)

Varies

Where are the negatively charged electrons found in an atom?

Scattered throughout the atom

Attached to protons

In the orbitals around the nucleus (correct)

Inside the nucleus

What is used to compare the masses and charges of subatomic particles?

Relative atomic masses and charges Signup and view all the answers

How are the masses of protons and neutrons described?

Equal Signup and view all the answers

What is the definition of redox reactions?

Reactions involving simultaneous oxidation and reduction Signup and view all the answers

Which process involves the addition of oxygen?

CuO + H2 Signup and view all the answers

Which of the following represents a decrease in oxidation number?

N2 + H2 → NH3 Signup and view all the answers

What is the result of reduction?

Gain of electrons Signup and view all the answers

Which equation represents the gain of electrons?

FeCl3 → FeCl2 + 1/2Cl2 Signup and view all the answers