Answer:
8X5=40
Step-by-step explanation:
Answer:
Barium, Strontium and Beryllium
Explanation:
There are 18 groups in the periodic table and the previous 3 all belong to the same group, group 2 the alkali metals
Silicon is group 14, the carbon group
Aluminum is in the boron group, group 13
Osminium is in the group 8 transition metals
12, or -12
12*12 = 144
-12*-12 = 144
No they have they same angle measure APEX