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Zorluk: OrtaAtomic Structure and Periodic Table

An isotope of titanium has a mass number of 4848 and contains 2626 neutrons in its nucleus. How many electrons surround the nucleus of a neutral atom of this isotope?

  1. A
    7474
  2. 2222Cevap
  3. C
    2626
  4. D
    4848

Cevap

A neutral atom of this titanium isotope has 2222 electrons.
The mass number (A=48A = 48) is the total count of protons and neutrons in the nucleus. Subtracting the 2626 neutrons from the mass number gives 2222 protons (48−26=2248 - 26 = 22). In a neutral atom, the number of electrons equals the number of protons, meaning there are 2222 electrons orbiting the nucleus.

Adım Adım Çözüm

1
Calculate the number of protons in the nucleus using the mass number and neutron count
Number of protons =48−26=22= 48 - 26 = 22
The mass number (AA) equals the sum of protons (ZZ) and neutrons (NN), so Z=A−NZ = A - N.
2
Determine the number of electrons in the electrically neutral atom
Number of electrons =22= 22
In any neutral atom, the number of negatively charged electrons equals the number of positively charged protons.

Anahtar Kavram

Relationship between mass number, subatomic particles, and atomic neutrality
Tahmini Süre:45s
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Konular

Atomic Structure and Periodic Table

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