Unit 1-1.4- Forming bonds Flashcards
What happens when a metal reacts with a non-metal?
Ions are formed.
How are positively charged ions formed?
When metal atoms lose 1 or more electrons.
How are negatively charged ions formed?
When non metals gain 1 or more electrons.
When do ionic bonds happen?
When a positive ion and a negative ion are attracted to one another.
What does the chemical formula of an ionic compound tell us?
The chemical formula of an ionic compound tells us the simplest ratio of ions in the compound.
When do covalent bonds happen?
When non-metals combine, their atoms share electrons to form covalent bonds and molecules are formed.
What does the chemical formula of a molecule tell us?
The chemical formula of a molecule tells us the number of atoms that have bonded together in the molecule.
What can covalent bonds be shown as?
Covalent bonds can be shown as lines between the atoms that are bonded together.
