Answer:
A. applied science is another term
Answer is: Li < Na < K.
Lithium (Li), sodium (Na) and potassium (K) are alkaline metals.
Alkaline metals (far left in main group) have lowest ionizations energy and easy remove valence electrons (one electron).
Potassium has lowest ionization energy and it is most reactive, because valcense electrons is farthest from nucleus.
Electron configuration of lithium atom: ₃Li 1s² 2s¹.
Electron configuration of sodium atom: ₁₁Na 1s² 2s² 2p⁶ 3s¹.
Electron configuration of potassium is: ₁₉K 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹.
The ionization energy (Ei) is the minimum amount of energy required to remove the valence electron, when element lose electrons, oxidation number of element grows (oxidation process).
Answer:
CaCl2
And
potasium phosphate is a general name for salt of potassium and phosphate ions . The compounds can exist as
K3PO4 (Tripotassium phosphate)
K2HPO4 (di potassium phosphate)
KH2PO4 (mono potassium phosphate)
Explanation:
Calcium chloride salt is an ionic compound. so it contains both cations and anions. That means it has a positively charged ion and a negatively charged ion. In an ionic compound their is a transfer of electron. The valence electron or the charge ion present in an atom can be use to predict the chemical formula of this compound . Base on the compound the positive end is calcium while the negative end is chlorine .
Ca2+ and Cl-
cross multiply the charges
CaCl2
The charge of phosphate ions are (PO4)3−, (HPO4)2− and (H2PO4)−. And base on the valence electron potassium has a stable charge of +1 (K+). The phosphate ion produces the negative charge when it reacts with potassium.
If potassium goes into reaction with any of the phosphate ion it will be as follows.
K+ and (PO4)3−
cross multiply the charge as usual
K3PO4(tripotassium phosphate)
K+ and (HPO4)2−
cross multiply the charge as usual
K2HPO4(di potassium phosphate)
K+ and (H2PO4)−
cross multiply the charge as usual
KH2PO4 (mono potassium phosphate)
Metallic bonding is the force of attraction between valence electrons and the metal atoms. Protons in this case act as a glue for many detached electrons and positive ions, giving said substance an actual structure.
Answer:
ZINC(zn) is used as the coating layer for the iron and as well as for all ferrous materials in galvanization/galvanizing process which defined as given below.
Explanation: