Answer:
D) How many valence electrons the atom contains.
This is the only closest one
because the number of electrons in the outermost shell is the correct answer
Answer:
Bq/m3 (becquerels per cubic meter) or pCi/l (picocuries per litre)
Explanation:
The unit of the International System of Units identified to measure radioactive activity is Becquerelio (Bq) and equivalent to one decay per second.
The Curio (Ci) is also a radioactivity unit, which is still being used in some countries. It owes its name to chemists and chemists Pierre and Marie Curie.
It represents the amount of material in which 3.7 × 1010 atoms per second, or 3.7 × 1010 nuclear decays per second, which is roughly the activity of 1 g of 226Ra (isotope of the chemical chemical element).
The equivalence between the two is:
1Ci= 3,7 × 1010Bq
The specific radioactive activity of a radioactive gas such as radon gas is measured per unit volume and measured in Bq/m3 or pCi/l.
In this case the equivalence is:
1pCi/l= 37Bq/m3
<span><span>Number of Protons-19 </span><span>Number of Neutrons-20 </span><span>Number of Electrons-<span>19</span></span></span>
Inorganic or organic ester or salt of nitric acid, containing the (NO3<span>-) ion. </span>Nitrates<span> are the most water soluble of all salts, and play a major part in nitrogen cycle and </span>nitrate<span>pollution. Inorganic </span>nitrates<span> are formed by bacteria and are an essential component of agricultural soil.</span>
Pharmaceutical compounding (done in compounding pharmacies<span>) is the creation of a particular 1 History; 2 </span>Roles<span> These </span>ancient<span> compounders </span>produced<span> the first oils from plants and animals. The compounding </span>pharmacist<span> often extracted these crude </span>drugs<span> using water or alcohol to form extracts,</span>
