The atoms of same element having same atomic number but different mass number are called____________________?
Correct answer: C. Isotopes
- A. Isobars
- B. Isomers
- C. Isotopes
- D. Isotropes
Explanation
Isotopes are atoms of the same element with the same atomic number but different mass numbers, caused by different numbers of neutrons. The likely mistake is isobars, but isobars have the same mass number and different atomic numbers.
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About Periodic Properties and Trends
Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
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