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तमिलनाडु बोर्ड ऑफ सेकेंडरी एज्युकेशनएसएसएलसी (अंग्रेजी माध्यम) कक्षा ९

Complete the following table. Atomic Number Mass Number Number of Neutrons Number of Protons Number of Electrons Name of the Element 9 ______ 10 ______ ______ ______

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प्रश्न

Complete the following table.

Atomic Number Mass Number Number of Neutrons Number of Protons Number of Electrons Name of the Element
9 ______ 10 ______ ______ ______
16 ______ 16 ______ ______ ______
______ 24  ______ ______ 12 Magnesium
______ 2 ______ 1 ______  ______
______ 1 0 1 1 ______
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उत्तर

Atomic Number Mass Number Number of Neutrons Number of Protons Number of Electrons Name of the Element
9 19 10 9 9 Potassium
16 32 16 16 16 Sulphur
12 24  12 12 12 Magnesium
1 2 1 1 1  Deuterium
1 1 0 1 1 Hydrogen
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अध्याय 11: Atomic Structure - Exercise [पृष्ठ १३६]

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सामाचीर कलवी Science [English] Class 9 TN Board
अध्याय 11 Atomic Structure
Exercise | Q V. | पृष्ठ १३६

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[The upper number represent the – mass number and the lower number represent the – atomic number e.g. calcium – mass number = 40, atomic number = 20]


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Atomic no. = 1
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Mass No =______ + No. of Neutrons.


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A group of elements in the periodic table is given below (Boron is the first member of the group and Thallium is the last).

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