10/18: Finding PEN Scavenger Hunt p8-11

Front

What is an electron?

Back

An electron is a subatomic particle with a negative charge that orbits the nucleus of an atom.

Front

What is the atomic number of Molybdenum?

Back

The atomic number of Molybdenum is 42, which indicates it has 42 protons.

Front

What does a coefficient represent in a chemical equation?

Back

A coefficient is a number placed in front of a chemical symbol or formula that indicates the number of molecules involved in the reaction.

Front

What is the Periodic Table?

Back

The Periodic Table is a chart that organizes all known chemical elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What is the role of neutrons in an atom?

Back

Neutrons are neutral particles found in the nucleus of an atom that contribute to the atomic mass and stability of the nucleus.

Front

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

Back

To find the number of neutrons, subtract the atomic number (number of protons) from the atomic mass (rounded to the nearest whole number).

Front

What is the difference between an atom and a molecule?

Back

An atom is the smallest unit of an element, while a molecule is a group of two or more atoms bonded together.

Front

What is a subscript in a chemical formula?

Back

A subscript is a number written below and to the right of a chemical symbol that indicates the number of atoms of that element in a molecule.

Front

What is the significance of the atomic mass?

Back

The atomic mass is the weighted average mass of an element's isotopes, reflecting the number of protons and neutrons in the nucleus.

Front

What is an ion?

Back

An ion is an atom or molecule that has gained or lost one or more electrons, resulting in a net electrical charge.