Question

The table shows the mass in grams of one at of each of several elements. List the elements in order from least mass to greatest mass per atom: hydrogen, carbon, oxygen, silver, gold.

Answer 1

Answer:

Option B

Step-by-step explanation:

The question can be solved without observing the masses and calculating them.

How?

• Periodic table law states that masses get increased in group and get decreased in period.
• Hydrogen is the 1st element so it has least mass.

Now

Only option B and D has Hydrogen at first.

• Rest omitted

Now coming to last elements Carbon and Gold

Gold is heavier as per periodic table.

So option B is correct