When chromium has 26 electrons, how many neutrons and protons does it have and what is it's standard notation

I don't know why students want to change screen names (as you have done). We can help better if you keep the same name.

Which Cr isotope do you want this information for? See https://www.webelements.com/

To determine the number of neutrons and protons in an atom of chromium with 26 electrons, we need to find its atomic number and mass number.

The atomic number of an element represents the number of protons in its nucleus. Since the electron count is given as 26, we can conclude that the atomic number of chromium is also 26.

The mass number of an atom is the sum of protons and neutrons in its nucleus. To find the mass number, we need to determine the number of neutrons present. The mass number can be calculated by rounding the atomic mass of chromium to the nearest whole number.

The atomic mass of chromium is approximately 51.996 amu (atomic mass units). Hence, the mass number is around 52.

To find the number of neutrons, subtract the atomic number from the mass number. In this case, the number of neutrons in chromium is 52 - 26 = 26 neutrons.

Therefore, chromium with 26 electrons has 26 protons, 26 neutrons, and its standard notation is written as:

Chromium-52 (52Cr)