Chemistry291

What is 1s2 2s2 2p5 ? Answer : 1s2 2s2 2p5 means that ●s subshell of first orbit or energy level has two electrons, ●s subshell of second orbit or energy level has two electrons, ●p subshell of second orbit or energy level has five electrons, From 1s2 2s2 2p5 electron configuration,we get 2+2+5 = 9 electrons. We know that electron's number is equal to proton number or atomic number for neutral atom. Since here there is no words about charge,we can say that 1s2 2s2 2p5 indicates the element whose atomic number is 9. Now if you look at the periodic table,F (Fluorine) has atomic number 9. So 1s2 2s2 2p5 is the electron configuration of  F (Fluorine) . Next

      What is 1s2 2s2 2p6 3s1  ? 1s2 2s2 2p6 3s1   means that  ●s subshell of first orbit or energy level has two electrons, ●s subshell of second orbit or energy level has two electrons,   ●p subshell of second orbit or energy level has six electrons, ●s subshell of third orbit or energy level has one electron. From  1s2 2s2 2p6 3s1  electron configuration,we get 2+2+6+1  = 11 electrons. We know that electron's number is equal to proton number or atomic number for neutral atom. Since here there is no words about charge,we can say that 1s2 2s2 2p6 3s1  indicates the element whose atomic number is 11. Now if you look at the periodic table,Mg  (Sodium) has atomic number 11. So 1s2 2s2 2p6 3s1  is the electron configuration of Na  (Sodium) .   Next

  What is 1s2 2s2 2p6 3s2 ? Answer: 1s2 2s2 2p6 3s2   means that  ●s subshell of first orbit or energy level has two electrons, ●s subshell of second orbit or energy level has two electrons,   ●p subshell of second orbit or energy level has six electrons, ●s subshell of third orbit or energy level has two electrons. Read:CO2 Lewis Structure From  1s2 2s2 2p6 3s2  electron configuration,we get 2+2+6+2  = 12 electrons. We know that electron's number is equal to proton number or atomic number for neutral atom. Since here there is no words about charge,we can say that 1s2 2s2 2p6 3s2  indicates the element whose atomic number is 12. Now if you look at the periodic table,Mg  (Magnesium) has atomic number 12. So 1s2 2s2 2p6 3s2  is the electron configuration of Mg  (Magnesium) .   Next Next

      What is 1s2 2s2 2p6 3s2 3p1 ? 1s2 2s2 2p6 3s2 3p1  means that  ●s subshell of first orbit or energy level has two electrons, ●s subshell of second orbit or energy level has two electrons,   ●p subshell of second orbit or energy level has six electrons, ●s subshell of third orbit or energy level has two electrons,  ● and p subshell of third orbit or energy level has oneo electron. From  1s2 2s2 2p6 3s2 3p1 electron configuration,we get 2+2+6+2 + 1 = 13 electrons. We know that electron's number is equal to proton number or atomic number for neutral atom. Since here there is no words about charge,we can say that 1s2 2s2 2p6 3s2 3p1 indicates the element whose atomic number is 13. Now if you look at the periodic table,Al (Aluminum) has atomic number 13. So 1s2 2s2 2p6 3s2 3p1 is the electron configuration of Alminum (Al).   Next

   What is 1s2 2s2 2p6 3s2 3p2 ? Answer: 1s2 2s2 2p6 3s2 3p2  means that  ●s subshell of first orbit or energy level has two electrons, ●s subshell of second orbit or energy level has two electrons,   ●p subshell of second orbit or energy level has six electrons, ●s subshell of third orbit or energy level has two electrons,  ● and p subshell of third orbit or energy level has two electrons. From  1s2 2s2 2p6 3s2 3p2 electron configuration,we get 2+2+6+2 + 2 = 14 electrons. We know that electron's number is equal to proton number or atomic number for neutral atom. Since here there is no words about charge,we can say that 1s2 2s2 2p6 3s2 3p2 indicates the element whose atomic number is 14. Now if you look at the periodic table,Si (Silicon) has atomic number 14. So 1s2 2s2 2p6 3s2 3p2 is the electron configuration of Silicon (Si).   Next

  What is 1s2 2s2 2p6 3s2 3p3 ? Answer: 1s2 2s2 2p6 3s2 3p3 means that  ●s subshell of first orbit or energy level has two electrons, ●s subshell of second orbit or energy level has two electrons,   ●p subshell of second orbit or energy level has six electrons, ●s subshell of third orbit or energy level has two electrons,  ● and p subshell of third orbit or energy level has three electrons. From 1s2 2s2 2p6 3s2 3p3 electron configuration,we get 2+2+6+2 + 3 = 15 electrons. We know that electron's number is equal to proton number or atomic number for neutral atom.Since here there is no words about charge,we can say that 1s2 2s2 2p6 3s2 3p3 indicates the element whose atomic number is 15. Now if you look at the periodic table,P (Phosphorus) has atomic number 15. So 1s2 2s2 2p6 3s2 3p3 is electron configuration of Phosphorus(P).   Next

  What is 1s2 2s2 2p6 3s2 3p5 ? Answer: 1s2 2s2 2p6 3s2 3p5 means that  ●s subshell of first orbit or energy level has two electrons, ●s subshell of second orbit or energy level has two electrons,   ●p subshell of second orbit or energy level has six electrons, ●s subshell of third orbit or energy level has two electrons,  ● and p subshell of third orbit or energy level has five electrons. Read:CO2 Lewis Structure From 1s2 2s2 2p6 3s2 3p5 electron configuration,we get 2+2+6+2 + 5 = 17 electrons. We know that electron's number is equal to proton number or atomic number for neutral atom.Since here there is no words about charge,we can say that 1s2 2s2 2p6 3s2 3p5 indicates the element whose atomic number is 17. Now if you look at the periodic table,Cl has atomic number 17. So 1s2 2s2 2p6 3s2 3p5 is electron configuration of Chlorine(Cl). Read:CO2 Lewis Structure   Next Read:CO2 Lewis Structure Some Questions ans Answer: An atom has the electron configuration 1s22s22p63s23p5. Th

What is 1s2 2s2 2p6 3s2 3p4 ? Answer: 1s2 2s2 2p6 3s2 3p4 means that ●s subshell of first orbit or energy level(1s2)has two electrons, ●s subshell of second orbit or energy level(2s2) has two electrons, ●p subshell of second orbit or energy level(2p6) has six electrons, ●s subshell of third orbit or energy level(3s2)has two electrons, ● and p subshell of third orbit or energy(3p4) level has four electrons. From 1s2 2s2 2p6 3s2 3p4 electron configuration,we get 2+2+6+2 + 4 = 16 electrons. We know that electron's number is equal to proton number or atomic number for neutral atom.Since here there is no words about charge,we can say that 1s2 2s2 2p6 3s2 3p4 indicates the element whose atomic number is 16. Now if you look at the periodic table,S has atomic number 16. So 1s2 2s2 2p6 3s2 3p4 is the electron configuration of Sulphur(S). Next

What is 1s2 2s2 2p6 3s2 3p6 ? Answer: 1s2 2s2 2p6 3s2 3p6 means that  ●s subshell of first orbit or energy level has two electrons, ●s subshell of second orbit or energy level has two electrons,   ●p subshell of second orbit or energy level has six electrons, ●s subshell of third orbit or energy level has two electrons,  ● and p subshell of third orbit or energy level has six electrons. From 1s2 2s2 2p6 3s2 3p6 electron configuration,we get 2+2+6+2 + 6 = 18 electrons. We know that electron's number is equal to proton number or atomic number for neutral atom.Since here there is no words about charge,we can say that 1s2 2s2 2p6 3s2 3p6 indicates the element whose atomic number is 18. Now if you look at the periodic table,Ar has atomic number 18.So 1s2 2s2 2p6 3s2 3p6 is electron configuration of Argon(Ar).   Next

What is 1s2 2s2 2p6 ? Answer: 1s2 2s2 2p6 means that  ◆s subshell of first orbit or energy level has two electrons, ◆s subshell of second orbit or energy level has two electrons,  ●and p subshell of second orbit or energy level has six electrons. Read:CO2 Lewis Structure From 1s2 2s2 2p6 electron configuration,we get 2+2+6 = 10 electrons. We know that electron's number is equal to proton number or atomic number for neutral atom.Since here there is no words about charge,we can say that 1s2 2s2 2p6 indicates the element whose atomic number is 10. Now if you look at the periodic table,Ne has atomic number 10.So 1s2 2s2 2p6 is electron configuration of Neon(Ne).   Next Question and Answers •What element is best represented by the electron configuration 1s2 2s2 2p6? Answer: The element Neon,Ne, is the best represented by the electron configuration 1s2 2s2 2p6. • How many electrons does 1s2 2s2 2p6 have? Answer: 1s2 2s2 2p6 has ten electrons.

  Which metal is/are present in chlorophyll and Haemoglobin? Select one from four options: A) Mg,Fe B) Fe,Mg C) Ca,Mg D) Na,K Answer:A In chlorophyll ,you will get metal magnesium(Mg) and in Haemoglobin you will get metal iron (Fe).

  LCM of 8 and 12 To find out LCM (Least common multiple) of 8 and 12 ,we will follow the following methods.         Method-01: Step-1:Find out the multiples of 8 and 12 first. *Multiples of 12 •12×1= 12 •12×2=24 •12×3= 36 •12×4= 48 ....................... *So the multiples of 12 are 12,24,36,48.....etc. *Multiples of 8 •8×1= 8 •8 × 2=16 •8 × 3=24 •8 × 4=32 •8× 5 =40 ..................... *So the multiples of 8 are 8,16,24,32, 40....etc Step-2:LCM (Least common multiple) of 8 and 12 means that the smallest multiple that both number (8 and 12) share. So in this step we will identify the smallest multiple that both number share or that is common in both number. *M ultiples of 12 are 12, 24 ,36,48.....etc. *M ultiples of 8 are 8,16 ,24 ,32, 40....etc Therefore,the smallest multiple that both number (8 and 12) share is 24. Answer:The LCM or least common multiple of 8 and 12 is 24. Next

  LCM of 12 and 18 To find out LCM (Least common multiple) of 12 and 18 ,we will follow the following methods.         Method-01: Step-1:Find out the multiples of 12 and 18 first. *Multiples of 12 •12×1= 12 •12×2=24 •12×3= 36 •12×4= 48 ....................... *So the multiples of 12 are 12,24,36,48.....etc. *Multiples of 18 •18×1=18 •18×2= 36 •18×3=54 ..................... *So the multiples of 18 are 18,36, 54....etc Step-2:LCM (Least common multiple) of 12 and 18 means that the smallest multiple that both number (12 and 18) share. So in this step we will identify the smallest multiple that both number share or that is common in both number. *Multiples of 12 are 12,24, 36 ,48.....etc. *Multiples of 18 are 18, 36 , 54....etc Therefore,the smallest multiple that both number (12 and 18) share is 36. Answer:The LCM or least common multiple of 12 and 18 is 36.