Formulas + Chemical Equations - Term 3 Flashcards
1
Q
components of ionic bonds
A
- a metal + a non metal(s)
- losing / gaining electrons to have a full outer shell (metals lose non metals gain)
- positive and negative ions attract
2
Q
components of covalent bonds
A
- two or more non metals
- share electrons to have full outer shell
3
Q
molecules are formed when…
A
atoms share electrons
4
Q
symbols represent
A
elements
5
Q
formulae represents
A
compounds
6
Q
the little number next to the elements in formulas represents
A
number of atoms
7
Q
order to name ionic compounds
A
name metal first, then non metal. metal does not change name.
8
Q
when to use “ide” for non metal part of an ionic compound
A
- there is two elements
- there is a hydroxide ion
9
Q
when to use “ate” for non metal part of an ionic compound
A
- more than two elements , one of which is oxegyn
10
Q
steps to write ionic compounds
A
- work out charge of different ions
- add ions if not already neutral
- count total ions and write formula
11
Q
polyatomic ions
A
ions that contain more than one element
