Ions and Formulas Flashcards
What groups are most likely to from ions?
1 and 2.
6 and 7.
When an atoms loses or gains an electron it becomes?
An ion .
What electronic structure do ions have?
Electronic structure of a noble gas.
What are group 1 and 2 elements?
Metals.
What do group 1 and 2 elements do?
Lose electrons to form positive ions.
What are group 1 elements called?
The alkali metals.
How do group 1 elements form ionic compounds with non-metals?
Where the metal ion has a 1+ charge.
What are group 6 and 7 elements?
Non-metals.
What do group 6 and 7 elements do?
Gain electrons to form negative ions.
What are group 7 elements called?
The halogens.
How do group 7 elements form ionic compounds with the alkali metals?
Where the halide ion has a 1- charge.
The charge on the positive ions is the same as what?
The group number of the element.
Name 3 positive ions in group 1?
Li+ - Lithium.
Na+ - Sodium.
K+ - Potassium.
Name 3 positive ions in group 2?
Be2+ - Beryllium.
Mg2+ - Magnesium.
Ca2 + - Calcium.
Name a negative ion in group 6?
O2- - Oxygen.
