An atom of iron is represented as 56 Fe 26 Give the number of protons, neutrons and electrons in this atom of iron.

We see two numbers given for the description of an atom on the periodic, one larger than the other. The larger number is in reference to the atomic mass of the atom, which is the sum of the number of protons and neutrons in the nucleus. The lower number is the atomic number of the atom which is the number of protons in the nucleus.If we inspect the symbol given further we can see that there is no formal charge on the atom, meaning it is neutral. Due to this fact, we can tell that the number of negative charges in the nucleus (electrons) are equal to the number of positive charges (protons). From the previous point we know that the number of protons is equal to the atomic number and similarly, we can then say the number of electrons in the atom is also equal to the atomic number.

Answered by Jonas M. Chemistry tutor

7373 Views

See similar Chemistry GCSE tutors

Related Chemistry GCSE answers

All answers ▸

How many covalent bonds do nitrogen atoms make and why?


i) Write down the Equation for the Haber-Bosch process. Stating clearly the catalyst used. ii) Explain why high pressures are used for this reaction in industry iii) Explain the importance of the catalyst


The reaction for the Haber process is shown below. N2(g) + 3H2(g) ⇌ 2NH3(g) What will be the effect of increasing the pressure on the amount of ammonia present at equilibrium? [1 mark]


How can crude oil be separated into different fractions?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo
Cookie Preferences