I believe the answer is A
Arguably A, B and C are all correct. Atoms of elements can form compounds such as NaCl(table salt). Molecules form molecular compounds and minerals are just complex molecule compounds.
<u>Moseley</u> discovered that <u>elements</u> with similar properties occurred at <u>regular intervals</u> when the elements were arranged in order of increasing
<u>"</u><u> </u><u>Atomic number </u><u>"</u>
Answer:
<h3><u>
<em>The board should be placed at about an 80-88 degrees angle. </em></u></h3>
<u><em>Explanation:</em></u>
<u><em>This will speed the car up and increase its speed as going down the ramp.</em></u>
