Oct 17, 2015 · 1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(10)4s^(2)4p^(6) Strontium is atomic number 38 so its electron configuration can be written: 2.8.18.8.2 In orbital notation this is: 1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(10)4s^(2)4p^(6)5s^(2) The noble gas shorthand notation is: [Kr]5s^(2) When strontium forms a 2+ ion the 2 outer 5s electrons are lost so Sr^(2 ...

Jul 3, 2014 · The correct answer is Sr F_2. Let us see how we got the answer; Look at the electronic arrangement of Sr and F atom. Sr ( Z= 38) has 38 electrons with following electronic configuration. 1s^22s^22p^63s^23p^64s^23d^104p^65s^2 It loses two electron in its 5s subshell to achieve stability and forms ion Sr^(2+). Sr^(2+) 1s^22s^22p^63s^23p^64s^23d^104p^6 F ( …

Mar 17, 2016 · Sr_3(PO_4)_2 The metal ion Strontium has an ionic charge of +2, The polyatomic ion Phosphate has an ionic charge of -3, PO_4^-3 In order for the ionic molecule strontium phosphate to form a bond the charges need to be equal and opposite. Therefore, we will need 3 strontium ions Sr^+2 Sr^+2 Sr^+2 for a total ionic charge of +6 to bond with 2 phosphate ions …

Apr 11, 2015 · The answer is e) Sr^(2+) For an ion to be isoelectronic with an atom (or with another ion), it must have the same number of electrons surrounding its nucleus. A quick examination of the periodic table will show that krypton, Kr, is located in period 4, group 18, and has an atomic number equal to 36. This means that a neutral krypton atom has 36 electrons …

Aug 8, 2018 · Well, strontium is an "alkaline earth..." from "Group 2" of the Periodic Table.. It has two valence electrons and commonly forms Sr^(2+) ion. Bromine is a non-metal with seven valence electrons, and commonly forms the Br^- ion. When strontium and bromine make music together, we conceive of a redox process... Sr(s) +Br_2(l) rarr SrBr_2(s)

Apr 14, 2018 · Strong base Group IA and Group IIA (Only Sr, Ca, Ba) with hydroxide (OH^-) are strong bases.

Jun 7, 2014 · The molarity of Sr(OH)_2 is "0.67 M" Acids and bases neutralize each other. Strontium hydroxide will neutralize hydrochloric acid to produce a salt and water. The reaction will be Sr(OH)_2 + 2HCl -> SrCl_2 + 2H_2O the volume of strontium hydroxide is "315 mL" the volume of hydrochloric acid is "525 mL" the molarity of hydrochloric acid is "0.80 M" Steps: …

Jan 28, 2017 · Well, the atomic mass of Sr is 87.6*g*mol^-1.... That of nitrogen is 14.01*g*mol^-1; and that of oxygen is 15.999*g*mol^-1. Do you suppose you could do the sum: (87.6+2xx14.01+4xx15.999)*g*mol^-1? Why did I mulitply the atomic mass of oxygen by four? Would you have to remember these atomic weights in an exam?

Feb 15, 2018 · Sr(ClO_2)_2 Strontium (Sr) has a valence of 2+. Similar to the other Group I and II metals, it can form a variety of chloro-oxides. The "ite" suffix indicated that it is the ClO_2 form (compared to the chlorate , for example - ClO_4).

Dec 19, 2016 · Sr has an atomic weight of 87.62 g/mol; N has an atomic weight of 14.01 g/mol; O has an atomic weight of 16.00 g/mol ; From the chemical formula, we have 1 strontium atom, so the atomic weight of Sr is just 87.62 g/mol. There are 2 nitrogen atoms, so the atomic mass has to be multiplied by 2, which gives you a value of 28.02 g/mol