Intro to Periodic Table Organization Lab

1. What is an element?

• An element is a basic building block of matter, made up of atoms with the same number of protons.
• An element is a compound made of different types of atoms.
• An element is a mixture of various substances combined together.
• An element is a large structure composed of multiple molecules.

How many different kinds of atoms is any element made of?

• 3
• 1
• 2
• 4

Tags

NGSS.MS-PS1-1

1. What does the atomic number of an element represent?

• The total number of electrons in an atom.
• The number of protons in an atom.
• The mass of an atom in atomic mass units.
• The number of neutrons in an atom.

1. What does the mass number of an element represent?

• The sum of an element's protons and neutrons.
• The mass of the most abundant isotope only.
• The total number of protons in an element.
• The weighted average mass of an element's isotopes.

Who first organized the elements in the Periodic Table? 

• Dmitri Mendeleev
• Robert Boyle
• John Dalton
• Henry Moseley

1. Did the elements need to be organized?  Why or why not?

Tags

NGSS.MS-PS1-1