Question

the sum of atomic number and mass number is equal to 46 the number of neutrons is one more than the protons find the atomic number


ANIRUDH Please
COME BaCK

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Answer 1

Step-by-step explanation:

• Atomic Number = Z
• Mass Number = A

Atomic Number = No. of electrons (e) = No. of protons (p)

Mass Number = No. of neutrons (n) + No. of protons (p)

• According to question

Atomic Number + Mass Number = 46

Lets the No. of protons be x

• p = x
• Z = x
• n = x + 1
• A = n + p
• A = (x + 1) + 1 = 2x + 1
• A + Z = 46
• 2x + 1 + x = 46
• 3x + 1 = 46
• 3x = 46 – 1
• 3x = 45
• x = 45/3
• x = 15

Atomic Number (Z) = 15