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Chemistry
Atomic number
How can the atomic number of nitrogen be determined $ ? $

Chemistry
Atomic number
What is the atomic number for the tin?
Chemistry
Atomic number
Element that corresponds to the atomic number $ 18 $ is ______
Chemistry
Atomic number
What is the atomic number of the element \[ununnilium\] ?
Chemistry
Atomic number
Why is atomic number used to identify elements?
Chemistry
Atomic number
An atom has a mass number of \[25\] and \[13\] neutrons. What is the atomic number of this atom?
Chemistry
Atomic number
Why is the atomic number represented by Z?
Chemistry
Atomic number
Which of the properties of an element is a whole number?
A) Atomic Mass
B) Atomic Number
C) Atomic Radius
D) Atomic Volume
Chemistry
Atomic number
What do we call this number which is characteristic of a particular element?

Chemistry
Atomic number
What should be the atomic number of the next halogen if discovered in the future?
A. 115
B. 117
C. 119
D. 121
Chemistry
Atomic number
Which of the following has pseudo inert gas configuration?
a.) \[N{{a}^{+}}\]
b.) \[C{{u}^{+}}\]
c.) \[{{K}^{+}}\]
d.) \[{{S}^{2-}}\]

Chemistry
Atomic number
Assertion: The mass number of hydrogen is equal to its atomic number.
Reason: H-atom has no neutrons.
a. Both assertion and reason are correct and reason is the correct explanation for assertion.
b. Both assertion and reason are correct but reason is not the correct explanation for assertion.
c. Assertion is correct but reason is incorrect
d. Assertion is correct but reason is incorrect.
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