An atom of an element with mass number 23 and atomic number
11 will have
1 11 neutrons, 12 protons and 11 electrons
2 11 protons, 12 neutrons and 11 electrons
3 11 neutrons, 11 protons and 12 electrons
4 23 protons and 11 electrons
what is the smallest fish?
The disease that is caused by viral infection is
The age of most ancient geological formations is estimated by 1 Potassium-argon method 2 Ra-Si method 3 C14method 4 Uranium-lead method
Name the scientist who has been invited by the Srilankan Governement to have a Study on Employment development?
how the Adams bridge was formed?
A super conductor is characterized by 1 Zero permeability 2 Low permeability 3 High permeability 4 Infinite permeability
What are soaps? 1 Salts of silicates 2 Esters of heavy fatty acids 3 Sodium or potassium salts of heavier fatty acids 4 Mixture of glycerol and alcohols
Let arr be an array of 20 integers. Write a program that first fills the array with up to 20 input values and then finds and displays both the subscript of the largest item in arr and the value of the largest item. • Use an IDE to develop and save your work
Which of the following is a chemical change? 1 Rusting of iron 2 Tempering of iron 3 Melting of iron 4 Bending of iron
The Contact Process is involved in the manufacture of 1 Nitric acid 2 Sulphuric acid 3 Ammonia 4 Caustic soda
The location and energy of an electron in an atom can be specified by 1 Atomic mass 2 Atomic number 3 Quantum numbers 4 None of these
what are the advantages and disadvantages of empirical knowledge?