Question

sodium 11 Na23 ke roop mein Likha Jata hai vo kya ingit karta hai​

Answer 1

Answer:

परमाणु संख्या 11 और द्रव्यमान संख्या 23 हैं।

Answer 2

Concept: The number of protons each element contains determines its atomic number, which is used to distinguish one element from another. The total number of protons and neutrons in an element determines its mass number.

• The atomic number of an atom is determined by counting all the protons in its nucleus.
• It is symbolised by the letter "Z."
• A specific element's atoms all have the same atomic number since all of its protons are the same.
• Atomic numbers vary among atoms belonging to various elements.
• For instance, all carbon atoms have an atomic number of 6, whereas all oxygen atoms have an atomic nucleus with eight protons.

• The mass of an atom is determined by the sum of the protons and neutrons.
• It is symbolised by the letter "A."
• Since protons and neutrons coexist in the atom's nucleus, they are collectively referred to as nucleons.
• For instance, a carbon atom contains 6 protons and 6 neutrons. Its mass number is 12 as a result.
• All atoms of an element have the same amount of protons, although they can have different numbers of neutrons. As a result, various isotopes of the same element can have different mass values.
• An electron weighs practically nothing. As a result, an atom's atomic mass and mass number are practically equal.

Given: Sodium $Na_{23} ^{11}$

To find: the meaning of the notation $Na_{23} ^{11}$

Solution: In the symbol of sodium $Na_{23} ^{11}$, 11 denotes the atomic number of sodium and 23 denotes the mass number of sodium.

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