Atoms, Elements, & Compounds

Who created the periodic table of elements?

• Dmitri Mendeleev

• Nikola Tesla

• Johannes Gutenberg

• Robert Fulton

The formation of a new substance with different properties; cannot be undone by physical means

• Physical Change

• Chemical Change

• Chemical Formula

• Precipitate

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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

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

A pure substance made by chemically combining two or more elements; represented by a chemical formula

• Compound

• Pure Substance

• Element

• Precipitate

Tags

NGSS.MS-PS1-1

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

• Precipitate

• Element

• Compound

• Pure Substance

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

Are the building blocks of everything.

• Particles

• Atoms

• Molecules

• Compounds

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Can be atoms, molecules, or ions.

• Atoms

• Elements

• Molecules

• Particles

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Made when 2 or more atoms chemically bond together.

• Compound

• Atom

• Molecule

• Particle

Tags

NGSS.MS-PS1-1