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Questions and Answers
Rutherford propose the first scientific theory about atom explaining its indivisibility
False
NPK fertilizer contains nitrogen, calcium and potassium
False
each main energy level composed of a number of energy sub levels in which electrons revolved in same shape
False
the energy of level increase as it gets away from the nucleus
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The third energy level of the atom is located between levels K and M and can be saturated with 8 electrons.
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The atomic number is written at the upper right side of an element's symbol.
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The number of neutrons is twice the number of protons in tritium isotopes.
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atom which contain 13 protons , 14 neutrons and 13 electrons is electrically neutral
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the higher energy levels are filled with with electron first
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Na 11 and Al 13 have the same number of electrons in energy level (L)
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