Periodic Table & Bohr Model

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds with other atoms.

Front

How many valence electrons does an atom with 7 valence electrons have?

Back

7

Front

What are periods on the periodic table?

Back

Periods are the horizontal rows in the periodic table that indicate the number of electron shells in the elements.

Front

How many electrons does an atom with atomic number 26 have?

Back

26

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 charge do electrons have?

Back

Electrons have a negative charge.

Front

What are groups on the periodic table?

Back

Groups are the vertical columns in the periodic table that contain elements with similar chemical properties.

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.

Front

What is the Bohr model?

Back

The Bohr model is a representation of the atom that depicts electrons orbiting the nucleus in fixed paths or energy levels.

Front

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

Back

The number of neutrons can be determined by subtracting the atomic number from the mass number.