1 |
How many periods are there is the Periodic table. |
- A. Five
- B. Six
- C. Seven
- D. Eight
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2 |
The elements of group 18 are called. |
- A. Alkali metals
- B. Noble gases
- C. Alkaline metals
- D. Transition metals
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3 |
There are ............ groups in periodic table. |
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4 |
Element present in grops have same number of ....... in their outermost shell. |
- A. Electron
- B. Proton
- C. Atoms
- D. Neutron
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5 |
Positively charged particle of an atom is called. |
- A. Electron
- B. Proton
- C. Atom
- D. Neutron
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6 |
The numebr of electorns present in an atom s equal to number of. |
- A. Nucleus
- B. Neutrons
- C. Proton
- D. Atom
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7 |
The maximum numebr of electrons that N-Shell accomodate are. |
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8 |
--------------- are fundamental particles of an atom. |
- A. Electron
- B. Proton
- C. Neutron
- D. All of these
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9 |
The particles of an element having different mass numbers. |
- A. Proton
- B. Neutrons
- C. Isotopes
- D. Atoms
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10 |
In .... elements are arranged in order of increasing atomic numbers. |
- A. Group
- B. Period
- C. Orbit
- D. Shell
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