chemistry- subatomic particles

Front

What are isotopes?

Back

Isotopes are variants of a chemical element that have the same number of protons (same atomic number) but different numbers of neutrons, resulting in different mass numbers.

Front

What does the atomic number represent?

Back

The atomic number represents the number of protons in the nucleus of an atom and determines the element's identity.

Front

Which subatomic particle is negatively charged?

Back

The electron is the negatively charged subatomic particle.

Front

What is the charge and mass of a neutron?

Back

A neutron has no charge (neutral) and a mass of approximately 1 atomic mass unit (amu).

Front

What happens when an element has extra neutrons?

Back

When an element has extra neutrons, it becomes an isotope of that element.

Front

What is a proton?

Back

A proton is a positively charged subatomic particle found in the nucleus of an atom.

Front

How do you identify an element?

Back

An element is identified by its atomic number, which is the number of protons in its nucleus.

Front

What is the mass number of an atom?

Back

The mass number is the total number of protons and neutrons in the nucleus of an atom.

Front

What is the nucleus of an atom?

Back

The nucleus is the central part of an atom, containing protons and neutrons.

Front

What is the difference between an ion and an isotope?

Back

An ion is an atom that has gained or lost electrons, resulting in a charge, while an isotope is an atom with the same number of protons but a different number of neutrons.