The neutron of an atom is located in the _____, and it has a _____ charge.

The Bohr model represents a(n) _______ atom.

The solar system model of an atom was proposed by ____.

The molecular model of an atom represents ____.

Electrons are ____________charged.

Which scientist proposed that all matter is made of atoms and developed the Atomic Theory?

The atomic number represents the number of __________ in the ________.

Atoms that have different atomic masses due to different neutron numbers are called _____.

Who discovered the neutron in the ______ of an atom?

What is the number of neutrons in an atom of Carbon-14?

X: - Which element could have the Lewis dot arrangement of X: ?

What element has the symbol Hg?

Group 1 in the periodic table is known as the ______.

Group 7 of the periodic table is known as the _______ family.

An atom with a Lewis Dot arrangement of the X to the right could be ___.

The picture to the right could be a Lewis dot structure for ____.

The Bohr model to the right could be the element _____.

The number of protons and neutron in the nucleus of the atom is called the ____.

The symbol for lead is ___.