The atom of an element has electronic configuration \( 2,8,7 \). It would be chemically similar ... VIDEO
The atom of an element has electronic configuration \( 2,8,7 \). It would be chemically similar to which of the following elements?
a. \( \mathrm{O}(8) \)
b. \( P(15) \)
c. \( \mathrm{Na}(11) \)
d. \( \mathrm{F}(9) \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live
Other Videos By PW Solutions 2023-07-15 The type of the bond in the compound \( \mathrm{AB} \) where \( \mathrm{A} \) and \( \mathrm{B} ... 2023-07-15 Which among the following is not true about noble gases?
a. They are non-metallic in nature
b. T... 2023-07-15 In modern periodic table, gold is placed in, a. s-block b. f-block c. d-block d. p-block 2023-07-15 On moving from left to right in a period :
a. Effective nuclear charge decreases
b. Metallic cha... 2023-07-15 Symbol of tin is a. \( \mathrm{Pb} \) b. \( \mathrm{Sb} \) c. Ti d. \( \mathrm{Sn} \) 2023-07-15 Which among the following gases is widely used in weather balloon?
a. Helium
b. Neon
c. Hydrogen... 2023-07-15 The Anion \( \mathrm{O}^{2-} \) is isoelectronic with
a.
\( \mathrm{F}^{+} \)
b. \( \mathrm{F}^{... 2023-07-15 The most metallic element in the fourth period is
a. \( \mathrm{Ca} \)
b. \( \mathrm{K} \)
c. \(... 2023-07-15 One of the defects of Mendeleevs periodic table is that:
a. Noble gases are placed in the same g... 2023-07-15 The atom of an element has electronic configuration \( 2,8,1 \). Which of the following elements... 2023-07-15 The atom of an element has electronic configuration \( 2,8,7 \). It would be chemically similar ... 2023-07-15 An element \( \mathrm{X} \) has an atomic number 9 and atomic mass 17 . Its ion will be represen... 2023-07-15 The element which normally exist in the liquid state are
a. Iodine and sodium
b. Mercury and chl... 2023-07-15 Select the incorrect statement for atomic size.
a. Atomic size of \( \mathrm{B}\mathrm{Be} \)
b.... 2023-07-15 The correct order of relative size?
a. \( \mathrm{I}^{-} \mathrm{I}^{+}\mathrm{I}^{-} \)
b. \( \... 2023-07-15 The correct increasing order of acidic nature of \( \mathrm{SO}_{2} \), \( \mathrm{SiO}_{2}, \ma... 2023-07-15 An element \( \mathrm{Y} \) has mass number 40 and it contains 21 neutrons in its atom. It belon... 2023-07-15 Would you place the two isotopes of chlorine, \( \mathrm{Cl}-35 \) and \( \mathrm{Cl}-37 \) in ... 2023-07-15 Select the correct pair that have largest and smallest atoms respectively.
a. \( \mathrm{F} \) a... 2023-07-15 The modern periodic table has been developed through the early attempts of Dobereiner, Newlands ... 2023-07-15 Which among the following properties increases down the group?
a. Nuclear attraction
b. Electrop...