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Atomic Structure Basics

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Questions and Answers

What does the atomic number of an element represent?

The number of electrons in the atom
The number of protons in the nucleus (correct)
The total number of protons and neutrons
The total mass of the atom

How do you determine the number of neutrons in an atom?

By adding the atomic number and atomic mass
By subtracting the atomic number from the atomic mass (correct)
By adding the number of protons and electrons
By looking at the number of electrons

What happens to an atom when it gains or loses an electron?

It becomes an isotope
It becomes an ion (correct)
It changes its atomic number
It affects the number of neutrons

What distinguishes isotopes of an element?

<p>They have the same number of protons but different numbers of neutrons (B)</p> Signup and view all the answers

If an element has an atomic number of 6, what element is it likely to represent?

<p>Carbon (A)</p> Signup and view all the answers

Flashcards

Atomic Number

The number of protons in an atom's nucleus. It determines the element's identity.

Atomic Mass

The total number of protons and neutrons in an atom's nucleus. It is usually a decimal to account for isotopes.

Isotopes

Atoms that have the same number of protons but a different number of neutrons.

Ions

Atoms that have gained or lost electrons, resulting in a net electrical charge.

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Ionization

The process of gaining or losing electrons, leading to a change in an atom's electrical charge.