M1 same number of electrons(1)M2 (same number of) electrons in outer shell (1)(iv) Why do sodium ions have a charge of +1?(they all have) 1 more proton than electrons I 11 protons and 10 electrons...(b) Carbon is an element which exists in different forms.(i) Name two for...
解析 (i) Group 13 (ii) The element's position in Group 13 is due to its outer shell having 3 electrons. (iii) Period 3 (iv) Aluminum (Al) (v) A diagram showing 2 electrons in the first shell, 8 electrons in the second shell, and 3 electrons in the third shell. 该元素位于元素...
A chlorine atom has 7 electrons on its outer shell. For the chlorine atom to attain a stable octet electronic configuration, it needs one more electron. A chlorine atom can share its one valence electron with another chlorine atom. In doing so, a pair of electrons is shared between the two...
1. the correct atom arrangement 2. correct number of valence electrons 3. no more than 2 electrons in the outer shell of hydrogen 4. no more than 8 electrons in valence shell of any 2nd period element 3rd period element exception
We use a complex scaled configuration interaction (CSCI) method for the three active electrons supplemented with a sophisticated model potential as developed by Laughlin [Phys. Scr. 45, 238 (1992)] to account for core-valence interactions. The CI calculations are based on Mg+ and Ca+ one-...
Cl.Show the outer electrons only.Cl Cl[1](f) The melting points and boiling points of chlorine and potassium chloride are shown.melting point boiling point/°C chlorine-101-35potassium chloride7701500(i) Deduce the physical state of chlorine at -75 C. Use the dat a in the table to ...
Explain your answer.(e) A compound, Z, consists of carbon and atoms of Y chemically bonded together.(i) What type of bonding is present in Z?(ii) Draw the dot-and-cross diagram for compound Z in the space below.Note: You only need to show the outer shell electrons. 相关知识点: ...
8. Helium does not form molecules, burn, or chemically react with other elements because it does not share outer electrons with other atoms. The sharing of outer electrons is what constitutes chemical change. Helium only has two valence electrons, which is considered a full, stable shell, ...
The arrangement of electron pairs in the outer shells of the cores of the transition metals Cu and V corresponds to the Gillespie model of the regions of local concentration of electrons located opposite the ligands, which illustrates the mechanism of bonding of atoms of the third and subsequent...
For example, magnesium, with an atomic number of 12, has two electrons in the inner shell, eight in the second shell and two in the outer shell. All chemical bonds involve electrons. Atoms will stay close together if they have a shared interest in one or more electrons. Atoms are at ...