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
Answer:
All triangles have 180 degrees.
Step-by-step explanation:
Answer:
11
Step-by-step explanation:
11+8=19
19x3=57
Answer:
A
Step-by-step explanation:
Because it is a random sample