Introduction to Compounds (Ch.8)...Introduction to Compounds (Ch.8) Recall: Elements: COMPOUNDS - A...
Transcript of Introduction to Compounds (Ch.8)...Introduction to Compounds (Ch.8) Recall: Elements: COMPOUNDS - A...
SCIENCE 9 NAME: MS. L BLOCK: DATE: Introduction to Compounds (Ch.8)
Recall:
Elements:
COMPOUNDS
- A compound is a made of two or more that
are
e.x. Water (H2O)
- elements combine to form compounds because they are trying to become more
- The most stable elements have a
e.x.
So, to be stable, most elements are trying to become like their nearest
octet rule: Elements bond with other elements to allow both to have
e.x: Sodium e.x. Fluorine
MATTER
Use your handout [3.1 - Compounds] to fill in the blanks below
Compounds form through
Chemical bonds:
We know that most compounds are one of two types: or
COVALENT COMPOUNDS - the sharing of electrons between two non-metals
In covalent compounds, atoms combine by electrons to form
Molecule:
Give two examples of covalent compounds:
In covalent compounds, the smallest particles are single .
In water, the covalent bonds that hold the molecule together are formed by the atoms of
and sharing pairs of .
Draw three representations of a water molecule in the boxes below. Label the H and O atoms in each.
IONIC COMPOUNDS – the transfer of electrons between metals & non-metals
In ionic compounds, atoms or electrons to form . This
transfer happens so that each element can have a full outer shell. (see diagram below)
When ionic compounds form, the atoms are not actually connected to each other. They are instead attracted
to each other because the ions in the compound have charges.
Ionic compounds exist as a in the form of an
Ionic lattice: