Hey there!
Lithium has 3 protons.
Assuming this is a neutral atom, that means it will also have 3 electrons.
Atomic mass is the sum of protons and neutrons. We have 7 total protons and neutrons, and 3 electrons.
7 + 3 = 10
The total number of subatomic particles is 10.
Hope this helps!
22 + 9 = 31
31 - 17.2 = 13.8
13.8 > 10 so student's guess is wrong
So the 3rd box.
This can’t have a answer unless u change them into another number of Delanece
Answer:
petroleum
Explanation:
usually found sedimentary rock.
definition: a liquid mixture of hydrocarbons that is present in certain rock strata and can be extracted and refined to produce fuels including gasoline, kerosene, and diesel oil, oil
The muscular and skeletal systems work together to provide a structural framework for movement... The combined organ systems are sometimes called the musculoskeletal system... When you want to move, signals travel from your brain to your skeletal muscle cells. The muscle cells then contract, or get shorter. Tendons connect the muscles to the bones. As muscles contract, they pull on the tendons which move the bones. Skeletal muscles often work in pairs, as the biceps and triceps of the arm.