Atoms and Elements

Representation of the name of an element; written as a capital letter or a capital letter followed by a lowercase letter(s)

• Chemical Formula

• Chemical Symbol

• Subscript

• Compound

Who created the periodic table of elements?

• Dmitri Mendeleev

• Nikola Tesla

• Johannes Gutenberg

• Robert Fulton

A representation of a compound in which the elements are represented by their symbols and subscripts represent the number of atoms of each element

• Subscript

• Physical Change

• Chemical Symbol

• Chemical Formula

A pure substance that cannot be broken down chemically into simpler substances

• Precipitate

• Element

• Compound

• Pure Substance

Which element has the atomic number 1?

• Helium

• Hydrogen

• Oxygen

• Carbon

Elements are the substances that are made up of only ____ type of atom.

• 0

• 1

• 2

• 3

Tags

NGSS.MS-PS1-1

Which element is classified as a noble gas?

• Hydrogen

• Oxygen

• Neon

• Carbon

Which of the following elements is a metal?

• Helium

• Chlorine

• Sodium

• Carbon

What is the most abundant element in the universe?

• Oxygen

• Hydrogen

• Carbon

• Iron

Tags

NGSS.MS-PS1-1

The number written to the right and slightly below an element in a chemical formula; represents the number of atoms of an element present in a chemical formula.

• Chemical Symbol

• Precipitate

• Subscript

• Element