Question

questions 28 - 31 prompt
questions 28 - 31: complete the tables by filling in the correct number of protons, neutrons and electrons.
29 fill in the blank 1 point
isotope copper-64
charge 1+

protons type your answer...

neutrons type your answer...

electrons type your answer...

Explanation:

Step1: Determine number of protons

Copper has an atomic number of 29, so the number of protons is 29.

Step2: Calculate number of neutrons

The mass number of Copper - 64 is 64. Number of neutrons = mass number - atomic number = \(64 - 29 = 35\).

Step3: Determine number of electrons

The charge is \(1+\), which means the ion has lost 1 electron. A neutral copper atom has 29 electrons, so the number of electrons in \(Cu^{+}\) is \(29 - 1 = 28\).

Answer:

• # protons: 29
• # neutrons: 35
• # electrons: 28