Web(a)€€€€ The diagrams represent molecules of hydrogen and chlorine. €€€€€€€€€ Draw a similar diagram to represent a molecule of hydrogen chloride (HCl). You need show only the outer energy level (shell) electrons. € € € € € € (1) (b)€€€€ The word equation for the reaction of hydrogen with chlorine is ... WebEach atom in the hydrogen chloride molecule attains a closed-shell octet of electrons by sharing and hence achieves a maximum lowering of energy. In general, an incomplete shell means that some attracting power of a nucleus may be wasted, and adding electrons beyond a closed shell would entail the energetic disadvantage of beginning the next …
Covalent Bonds - Chemistry LibreTexts
Web10 jun. 2024 · If Hydrogen has 1 electron it can only have 1 outer shell (or orbital) as an electron cannot by split across shells. In general, the first shell can hold 2 electrons, the second can hold 8. Consequently, hydrogen only has 1 outer shell as it has less than 2 electrons so it does not need another shell. Answer link WebWater. Even though you find complex names on other molecules, everyone calls H2O "water". Water is made up of two hydrogen (H) atoms and one oxygen (O) atom. The formula for water is H 2 O. The hydrogen atoms have filled orbitals with two electrons and the oxygen atom has a filled second orbital with eight electrons. cooler toned mushroom brown balayage
IGCSE Ionic and Covalent Bonding Quiz - Quizizz
Webanswer choices. Carbon can form four single covalent bonds. Chlorine atoms bond with each other by sharing a pair of electrons. Covalent bonding involves losing and gaining electrons. Hydrogen molecules have the formula H 2. Question 7. 30 seconds. Q. The diagram shows the electron arrangement in atoms of four elements. WebHelium has a full outer shell of 2 electrons, and the rest of the noble gases - neon, argon, xenon etc. also have a full outer shell of 8 electrons, giving them great electronic stability and therefore chemical stability - very unreactive. The group 0 noble gases are the least reactive elements in the whole of the periodic table. WebAn atom is composed of a dense core called the nucleus containing protons and neutrons and a series of outer shells occupied by orbiting electrons An electro... family nurse practitioner skills