Question

(c) T. as this was proved experimentally.
(d) F, as the iodine (I-131) is radioactive and costly, so, only simple iodine (1-127) a
tincture of iodine.
orcross ( in questions 15, 16 and 17.
5. Rutherford's alpha-particle scattering experiment was tesponsible for the discove
(a) Atomic nucleus b) Electron
(c) Proton
(aAtomic nucleus
5. Isotopes of an element have
(a) the same physical properties
(b) different chemical prope
(c) different number of neutrons
(d) different atomic number
(c) different number of neutrons, as the isotopes have same atomic number
numbers.
7. Number of valence electrons in Clare
(a) 16
(b) 8
Beletrans
(c) 17
(d)​

Answer 1

Answer:

Hope it helps and have a good night.............

Explanation:

• 5. Rutherford's alpha-particle scattering experiment was responsible for the discovery of /-
• Ans - / c - Proton

___________________________

• 6. Isotopes of an element have /-
• Ans - / c - different number of neutrons

_____________________

Sorry , but I can't understand the remaining questions..........

Answer 2

Answer:

i love you very much,‍♀‍♀‍♀