GROWTH DEVELOPMENT CHILD
SUMMATIVE ASSESSMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a different atomic number and the same mass number
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the same atomic number and a different mass number
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the same atomic number and the same mass number
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a different atomic number and a different mass number
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Detailed explanation-1: -Isotopes are known as the atoms of the same element having the same atomic number i.e same number of protons, but different atomic mass numbers i.e different numbers of neutrons. Example: The Carbon isotopes are given as : 6 C 11, 6 C 12, 6 C 13, 6 C 14 .
Detailed explanation-2: -Isotopes. An isotope is one of two or more forms of the same chemical element. Different isotopes of an element have the same number of protons in the nucleus, giving them the same atomic number, but a different number of neutrons giving each elemental isotope a different atomic weight.
Detailed explanation-3: -The atomic number is the number of protons in an atom, and isotopes have the same atomic number but differ in the number of neutrons.
Detailed explanation-4: -the number of protons in all the atoms of a particular element is same, therefore to have different mass numbers, isotopes contain different number of neutrons.
Detailed explanation-5: -Reason: Isotopes are the atoms of the same element having a same atomic number but different mass numbers.