Answer;
Atomic number Tc = 43 , which is equivalent to the number of protons in nucleus.
Number neutrons = mass number - number of protons = 99 - 43 = 56 neutrons .
Number of electrons = number of protons - charge = 43 - (+7) = 36 electrons
Explanation;
-Atomic number is the number of proton in the nucleus of an atom of a given element. Mass number is the total number of protons and neutrons in the nucleus of an atom. A neutral atom has equal number of protons and neutrons.
-Isotopes are atoms of the same element with the same atomic number but different mass number.
two hydrogen bonds are formed between adenine and thymine
A dependent variable is a value that depends on another, so what relies on the other! :)
The stomata of a plant are microscopic slits on the leaves that serve the purpose of absorbing carbon dioxide from the surrounding air so that it can perform photosynthesis to make its own food and release oxygen into the atmosphere. The correct answer is B, absorb gasses.
Hope that helped! =)
