Atomic Structure 2022

Front

What is the earliest model of the atom described as?

Back

An atom is an indivisible hard sphere.

Front

How many protons, neutrons, and electrons does an ion with a net charge of -3 have if it consists of 7 protons, 9 neutrons, and 10 electrons?

Back

7 protons, 9 neutrons, and 10 electrons.

Front

What is the mass listed on the periodic table for each element known as?

Back

Average atomic mass.

Front

Why are atoms considered neutral?

Back

Because the number of protons equals the number of electrons.

Front

What element could be represented by a dot diagram with 6 valence electrons?

Back

Oxygen (O).

Front

What is the charge of an ion with 7 protons and 10 electrons?

Back

-3.

Front

What does the atomic number of an element represent?

Back

The number of protons in the nucleus of an atom.

Front

What is the significance of neutrons in an atom?

Back

Neutrons contribute to the atomic mass and stability of the nucleus.

Front

What is the difference between an atom and an ion?

Back

An atom is neutral, while an ion has a net charge due to the loss or gain of electrons.

Front

What is the role of electrons in chemical bonding?

Back

Electrons in the outer shell (valence electrons) are involved in forming bonds between atoms.