Related Questions

অ্যালুমিনিয়াম, হিলিয়াম এবং সিলিকনের পারমাণবিক সংখ্যা যথাক্রমে 13, 2 এবং 14 হলে, Al27+He27→Si27+( ) নিউক্লিয়ার বিক্রিয়াতে অনুপস্থিত কণা কোনটি? (Aluminum has atomic number 13, helium has atomic number 2, and silicon has atomic number 14. In the nuclear reaction the missing particle Al27+He27→Si27+( ) is:)
A A. an α particle
B a positron
C an electron
D a proton
. অ্যালুমিনিয়াম, হিলিয়াম এবং সিলিকনের পারমাণবিক সংখ্যা যথাক্রমে 13, 2 এবং 14 হলে, Al27+He27→Si27+ নিউক্লিয়ার বিক্রিয়াতে অনুপস্থিত কণা কোনটি ? (Aluminum has atomic number 13, helium has atomic number 2, and silicon has atomic number 14. In the nuclear reaction Al27+He27→Si27+ the missing particle is:)
A an a particle
B a positrom
C an electron
D a proton
The transuranium elements are the chemical elements with atomic numbers greater than
A 86
B 89
C 92
D 96
A number is greater than 3 but less than 8. Also, it is greater than 6 but less than 10. The number is -
A 8
B 5
C 6
D 7
Atomic number of which of the following elements is greater than that of Iodine
A Silver
B Bromine
C Platinum
D Zinc
Atomic number of which of the following elements is greater than that of Chlorine
A Potassium
B Sulphur
C Aluminium
D Phosphorus
Atomic number of which of the following elements is greater than that of Calcium?
A Chlorine
B Argon
C Sulphur
D Scandium
Atomic number of which of the following elements is greater than that of Phosphorus?
A Aluminium
B Silicon
C Chlorine
D Magnesium
Atomic number of which of the following elements is greater than that of Neon?
A Oxygen
B Magnesium
C Nitrogen
D Boron
If 2 kg of metal, of which 1/3 is zine and the rest is copper , be mixed with 3 kg of metal, of which 1/4 is zinc and the rest is copper , then what will be the ratio of zinc to copper in the mixture?
A 17 : 43
B 13 : 42
C 19 : 43
D 15 : 42

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