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10 Questions

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Basic Atom Structure

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Questions and Answers

What is the charge of a proton?

+1 (correct)

-1

What holds the nucleus together despite the coulomb forces between protons?

Strong nuclear force (correct)

Weak nuclear force

Electromagnetic force

Gravitational force

What is the charge of an electron?

-2

-1 (correct)

What is the smallest unit of matter that retains the chemical properties of an element?

Atom Signup and view all the answers

In an uncharged atom, what is the relationship between orbital electrons and protons within the nucleus?

Orbital electrons are equal to protons Signup and view all the answers

What determines the arrangement of electron shells for an atom?

Atomic number Signup and view all the answers

What is the total number of protons and neutrons in the nucleus of an atom called?

Atomic mass number Signup and view all the answers

Which term describes the relative mass of an atom including orbital electrons?

Atomic mass Signup and view all the answers

What is represented by the symbol A in relation to atoms?

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What is used to group atoms into elements?