Chemistry - Chemical Bonding Flashcards
(28 cards)
What’s a compound?
A compound is a substance that is made up of two or more different elements combined together chemically
What is a compound?
Two or more elements combined chemically
What’s an element?
What is an element?
An element is a substance that can’t be split into simpler substances by chemical means
What’s a molecule?
A molecule is a group of atoms joined together. It is the smallest particle of an element or compound that can exist independently
What is a molecule?
A group of atoms joined together.
The smallest part of a element or compound that can exist independently.
Name a molecule that is not a compound
Here’s are a few
Name a molecule that is a compound
Here’s a couple
Categorise this substance.
Element ❑. Molecule ❑. Compound ❑.
Element ✔︎. Molecule ✔︎. Compound ✘.
Categorise this substance.
Element ❑. Molecule ❑. Compound ❑.
Element ✘. Molecule ✔︎. Compound ✔︎.
Why is this molecule not a element?
Because it can be split into two separate elements.
IT’S A COMPOUND
Why is this molecule not a compound?
It has only one kind of element
only one kind of atom
Categorise these substances
What’s a covalent bond?
A bond that consists of shared electrons
What is a single covalent bond?
A single covalent bond is when one pair of electrons is shared
What is a double covalent bond?
A double covalent bond is formed when two pairs of electrons are shared.
Why does H2O act like a magnet?
Most of the electron activity is on the oxygen side, so this side becomes more negative than the hydrogen side
What is a Cation?
What’s an Anion?
A negatively charged ION
Chlorine ION for example
Do you know what an ION is?
What’s happening here?
Table salt is being made. Na+Cl-
Name an ionic compound?
Na+Cl-
Salt
Which of these substances conduct electricity?
How do IONs conduct electricity?
