ow many protons and neutrons are in an atom of 247Cm ?

The atom of 247Cm, also known as Curium-247, has 96 protons and 151 neutrons.

Here's how you can determine this:

1. The atomic number of an element, which is the number of protons in the nucleus of an atom, is given by the subscript in the element symbol. For 247Cm, the atomic number is 96, which means there are 96 protons.

2. The atomic mass number, which is the total number of protons and neutrons in an atom, is given by the superscript in the element symbol. For 247Cm, the atomic mass number is 247.

3. To find the number of neutrons, you subtract the atomic number from the atomic mass number. So, 247 (atomic mass number) - 96 (atomic number) = 151. Therefore, there are 151 neutrons in an atom of 247Cm.