Bohr and Lewis Dot

Front

What is the majority of an atom's mass?

Back

The majority of an atom's mass exists in the nucleus.

Front

What is a valence electron?

Back

A valence electron is an electron in the outermost energy level of an atom.

Front

How many dots are in the Lewis Dot structure of Helium?

Back

The Lewis Dot structure of Helium has 2 dots.

Front

Is this a correct dot diagram for fluorine (F)?

Back

Yes, it is a correct dot diagram for fluorine.

Front

How many valence electrons are in Phosphorus?

Back

Phosphorus has 5 valence electrons.

Front

What is the nucleus of an atom?

Back

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

Front

What are protons?

Back

Protons are positively charged particles found in the nucleus of an atom.

Front

What are neutrons?

Back

Neutrons are neutral particles found in the nucleus of an atom.

Front

What is the electron cloud?

Back

The electron cloud is the region around the nucleus where electrons are likely to be found.

Front

How do you determine the number of valence electrons in an element?

Back

The number of valence electrons can be determined from the group number in the periodic table.