Ions and Isotopes

Front

What charge does an atom have if it LOSES an electron?

Back

Positive (+) - When an atom loses an electron, it has more protons than electrons, resulting in a positive charge.

Front

What is an isotope?

Back

Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons.

Front

Which of the following represents an isotope? Na, Cl, Na1+, Cl-18

Back

Cl-18 - This notation indicates a chlorine atom with 18 nucleons (protons + neutrons), making it an isotope.

Front

What two types of atoms make a covalent bond?

Back

2 Nonmetals - Covalent bonds typically form between two nonmetal atoms sharing electrons.

Front

What do isotopes of carbon have in common?

Back

Protons and electrons - All isotopes of carbon have the same number of protons (6) and electrons.

Front

What are negative ions called?

Back

Anions - Ions that have gained one or more electrons, resulting in a negative charge.

Front

What are positive ions called?

Back

Cations - Ions that have lost one or more electrons, resulting in a positive charge.

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

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

Back

Subtract the atomic number (number of protons) from the mass number.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.