Independent variable would be salt since you can't change it in this experiment.
yooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
Mg- is the isoelectronic of Na
Since no choices are given, I would just give the 6 possible tetrahedron structures of silicate minerals. Then, it will be up to you to distinguish which one fits to your choices.
1. Isolated tetrahedra - they are separated by positive charges. An example would be olivine.
2. Ringed tetrahedra - they are linked together by positive charges, like that of tourmaline.
3. Tetrahedra - oxygen is shared by two neighbors like that of the pyroxene family.
4. Double chains/Ribbons - example whould be the amphibole family
5. Silica Sheets - when oxygen is shared by three adjacent molecules like the micas and the clay minerals.
6. Three-dimensional framework - four oxygen atoms are linked to other tetrahedra like feldspar and quartz.
Answer:
basically electrons produced by the cathode are attracted towards anode positive terminal it is also called beta rays because they consist of negative charge particles in the chamber
Explanation: