Notes: Elements, Atoms and Molecules

Element: A pure substance, made up of only ____________________________________. An element cannot be broken down into smaller substances by ordinary chemical means.

Atom: The _________________________________ from which all elements are made.

Molecule: two or more atoms that are ____________________________________ to form a larger particle.

All matter is made of combinations of ___________________ joining together to form _______________________________.

Molecules can be made of just one element or a __________________________ of elements.

A compound is when the molecule is made of at least _______________________________of elements/atoms

Is it an atom or a molecule? Circle the atoms, box the molecules:

C O2 H2O Fe C6H12O6

Which of these molecules is considered a compound? Circle the compounds:

O2 H2O C4 C6H12O6

Draw the Venn Diagram seen on the board that categorizes Atoms, Elements, Molecules & Compounds:

Match the vocabulary term to the definition: A substance made of only one type of

atom

Two or more atoms that are chemically combined

The basic particle from which all elements are made

Two or more different elements combined chemically in definite proportions

Molecule

Element

Compound

Atom

Actual molecules are too small to see with our eyes and even too small for (most) microscopes Scientists use ________________________ of atoms to represent molecules & compounds and

show how they bond together.

Molecule Models Different colored circles/balls represent (=) _______________________________________ The lines/sticks represent (=) ___________________________________________

Scientists can also use just the letters with the lines as a structural formula...

Some molecules/compounds take on a _________________________________ because of the way the atoms bond together. These have repeating patterns. Example: Diamonds

TEACHER Notes: Elements, Atoms and Molecules

Element: A pure substance, made up of only _ONE KIND OF ATOM. An element cannot be broken down into smaller substances by ordinary chemical means.

Atom: The __BASIC PARTICLE____ from which all elements are made.

Molecule: two or more atoms that are __CHEMICALLY BONDED______ to form a larger particle.

All matter is made of combinations of __ATOMS_ joining together to form ___MOLECULES____.

Molecules can be made of just one element or a ___COMBINATION__ of elements.

A compound is when the molecule is made of at least _TWO DIFFERENT TYPES___Of elements/atoms.

Is it an atom or a molecule? Circle the atoms, box the molecules:

C O2 H 2O Fe C6H12O6

Which of these molecules is considered a compound? Circle the compounds:

O2 H2O C4 C6H12O6

Draw the Venn Diagram seen on the board that categorizes Atoms, Elements, Molecules & Compounds:

Match the vocabulary term to the definition: A substance made of only one type of

atom( ELEMENT)

Two or more atoms that are chemically combined (MOLECULE)

The basic particle from which all elements are made (ATOMS)

Two or more different elements combined chemically in definite proportions(COMPOUND)

Molecule

Element

Compound

Atom

Actual molecules are too small to see with our eyes and even too small for (most) microscopes Scientists use _MODELS__ of atoms to represent molecules & compounds and show how they

bond together.

Molecule Models Different colored circles/balls represent (=) ___DIFFERENT ATOMS___________ The lines/sticks represent (=) __THE BONDS CONNECTING THEM__________ Scientists can also use just the letters with the lines as a structural formula...

Some molecules/compounds take on a __CRYSTAL LATTICE___ because of the way the atoms bond together. These have repeating patterns. Example: Diamonds