Question

The following data represents the distribution of electrons, protons and neutrons in atoms of four elements A, B, C, & D. Understand the data carefully and answer the following questions. ELEMENT PROTONS NEUTRONS 10 ELECTRONS 9. B 16 16 16 12 12 12 17 22 17 (i) Give the electronic distribution of element B (a) 2,8,6 (c) 2,6,8 (b) 2,8,8 (i) The valency of element A: (b) I (iii) The atomic number of element B: (b) 17 (d) 2,8,7 (a) 2 (c) 3 (d) 4 (a) 18 (c) 16 (d) 11 (iv)The mass number of element D​

Answer 1

Answer:

The electronic distribution of element B is 2,8,7

(b) The element B is non metal (CI) .Its atom needs only one electron to have the configuration of nearest noble gas element argon (2,8,8)

(c ) The elements B and C form pair of isotopes since both of them have same number of electrons 17 and also same stomic number (Z=17)

(d) The elements A and D represent pari of isobars since both of them have same number (a=40)

Answer 2

Answer:

x+274 -3748 = -3574 congratulations u got the answer