It should be 2+ because Ba is in the 2nd group which means it needs two more electrons.
Flood plains are desirable farm land in spite of the fact that they are prone to flooding because of its high fertility.
<h3>Why are floodplains desirable farm land?</h3>
Floodplains are very fertile agricultural areas because the floods carry nutrient-rich silt and sediment and deposited it that plains. Floodplains are flat which make easier farming.
So we can conclude that flood plains are desirable farm land because of its high fertility.
Learn more about floodplain here: brainly.com/question/1000851
For the answer to the question above , as a chlorine atom becomes a negative ion, the atom <span>gains an electron and its radius increases.
The answer is the first one among the given choices.
I hope my answer helped you.</span>
Answer:
8.48 × 10²² atoms of Nitrogen
Explanation:
Calcium Carbonate is an ionic compound made up to Calcium (Ca²⁺) and Nitrate (NO₃⁻) ions. Also, the subscript 2 after the closed bracket after NO₃ specifies that there are two moles of NO₃⁻ in calcium nitrate compound. Hence, in total we can say that this compound contain,
1 atom of Calcium
2 atoms of Nitrogen
6 atoms of Oxygen
Therefore,
When,
1 molecule of Ca(NO₃)₂ contains = 2 atoms of Nitrogen
Then,
4.24 × 10²² molecules of Ca(NO₃)₂ will contain = X atoms of Nitrogen
Solving for X,
X = 2 atoms × 4.24 × 10²² molecule / 1 molecule
X = 8.48 × 10²² atoms of Nitrogen
1 mole is equal to the atomic mass of the element/compound in grams
