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Seven people A, B, C, D, E, F and G live on separate floors of a 7-floor building. Ground floor is numbered 1, first floor is numbered. 2 and so on until the topmost floor is numbered 7. Each one of these having a different cars-Cadillac, Ambassador, Fiat, Maruti, Mercedes, Bedford and Fargo but not necessarily in the same order. Only three people live above the floor on which A lives. Only one person lives between A and the one having a car Cadillac. F lives immediately below the one having a car Bedford. The one having a car Bedford lives on an even-numbered floor. Only three people live between the ones having a car Cadillac and Maruti. E lives immediately above C. E is not having a car Maruti. Only two people live between B and the one having a car Fargo. The one having a car Fargo lives below the floor on which B lives. The one having a car Fiat does not live immediately above D or immediately below B. D does not live immediately above or immediately below A. G does not have a car Ambassador. Question : How many people live between the floors on which D and the one having a car Bedford ?
Atoms having the same number of neutrons, but different no of electrons or protons are called?
Consider the following definitions: I. Isotopes: Having the same atomic number but a different mass number.  II. Isotones: Atoms of different elements having the same number of electrons.  III. Isobars: Same mass number but different atomic numbers  Which among the above is/are correctly matched?
Which one of the following statements is/are correct? a. The number of protons in a nucleus is called its atomic number. b. The total number of protons and neutrons constitutes its mass number.
The nuclei having same number of neutrons but different number of protons are called-
Which of the following are true for an element? (i) Number of protons of an atom determines its atomic number (ii) Mass of an atom resides in its orbits (iii) Protons and electrons make the nucleons (iv) Elements can be defined by the number of protons they possess
Which of the following statements is/are correct? 1. The atoms of an element having the same atomic number but a different mass number are called isotopes. 2. The nuclei which have the same mass number but a different atomic number are called isobars.
If a particular atom has the same number of protons but different number of neutrons, it is called
Species with the same number of neutrons but the different number of protons are called:
Atoms having the same number of neutrons but different mass number are called