Question 22 of 42beginner💡 UnderstandVery Short1 mark

Can you guess how many electrons each of these isotopes have?

Correct Answer

1

Exercise: QUESTIONS | Q: 6 | (Page 15)
For More Understanding

Explanation

According to the textbook, all atoms of an element have the same number of electrons and protons, which is equal to its atomic number. Since isotopes of an element have the same atomic number, they must have the same number of electrons. The isotopes of hydrogen (protium, deuterium, and tritium) all have an atomic number of 1, meaning they contain 1 proton each, and therefore, they each have 1 electron.

Solution Steps

  1. Step 1: Identify that isotopes of an element have the same atomic number.

  2. Step 2: Recall that the number of electrons in an atom is equal to its atomic number.

  3. Step 3: Since the atomic number of all hydrogen isotopes is 1, each isotope has 1 electron.

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