Problem: Do both members of the following pairs have the same number of protons? Neutrons? Electrons? Which pair(s) consist(s) of atoms with the same Z value? N value? A value?(a) 168O and 178O(b) 4018Ar and 4119K(c) 6027Co and 6028Ni

FREE Expert Solution

An element can be represented as:


You can determine the identity of the element using its atomic number:

Atomic number (Z): 

represents the identity of the element
reveals the number of protons
in a neutral element:

            # of protons = # of electrons

Mass number (A)

reveals the number of protons and neutrons

            mass number = # of protons + # of neutrons


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Problem Details

Do both members of the following pairs have the same number of protons? Neutrons? Electrons? Which pair(s) consist(s) of atoms with the same Z value? N value? A value?

(a) 168O and 178O
(b) 4018Ar and 4119K
(c) 6027Co and 6028Ni


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Our data indicates that this problem or a close variation was asked in Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition. You can also practice Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition practice problems.