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Atomic Mass and Atomic Mass Unit

Find the symb...

Question

Find the symbol of an element X, if its mass number is A and atomic number is Z respectively.

A

_AX^Z

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B

^A_ZX

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C

^Z_AX

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D

^ZX_A

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Solution

The correct option is B
^A_ZX

The symbol of any element is represented as:

Mass number

×

Atomic number

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Similar questions

Q. An element along with its atomic number and mass number is represented as

_{Z} X^{A}

where X is the symbol of the element, Z is the atomic number and A is the mass number. Represent elements A, B, C, D and E with its atomic number and mass number from the given data.

Elements	Number of protons	Number of electrons	Number of neutrons
A		x	y
B	a		b
C		m	m + 2
D		t	t
E	n		n + 1

Q. Assertion :The nucleus

_{Z}^{A} X

is having atomic mass as well as its mass number as

A .

Reason: Mass number of an element is an integer that specifies an isotope and has no units, while atomic mass is generally not an integer.

Q. An element is represented by

_{Z} X^{A}

, where Z is atomic number which is also equal to number of proton, A is mass number and X is symbol of the element.
Mass number (A) = Number of protons (Z) + Number of neutrons.
Isotopes: Atoms having same number of proton
Isobar: Elements having same mass number
Isotones: Elements having same number of neutron (A-Z)

An isotone of

_{40}^{90} Z r

Q. An element is represented by

_{Z} X^{A}

, where Z is atomic number which is also equal to number of proton, A is mass number and X is symbol of the element.
Mass number (A) = Number of protons (Z) + Number of neutrons.
Isotopes: Atoms having same number of proton
Isobar: Elements having same mass number
Isotones: Elements having same number of neutron (A-Z)

Which of the following is a pair of isobar?

Q. An element is represented by

_{Z} X^{A}

, where Z is atomic number which is also equal to number of proton, A is mass number and X is symbol of the element.
Mass number (A) = Number of protons (Z) + Number of neutrons.
Isoelectronic: Species/ elements having same number of electron
Isodiaphers: Elements having same value of

| (A - 2 Z) |

Isotopes: Atoms having same number of proton

Which of the following is a pair of isodiaphers?

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