Neco 2019 Chemistry Question 1

Practice essay / theory question 1 from the 2019 Neco Chemistry examination. This question covers Atomic Structure, Bohr Model, Electron Configuration, Ions .

Neco 2019 Chemistry Essay / Theory

Topics: Atomic Structure Bohr Model Electron Configuration Ions

Question 1 NECO • 2019 • CHEMISTRY • essay

The diagram shows a Bohr model of a neutral atom. The nucleus contains 15 protons and 16 neutrons. The electron shells are labelled K, L and M and contain 2, 8 and 5 electrons respectively.

Question Parts

( a )

Determine the atomic number (Z) and the mass number (A) of the element.

( b )

Identify the element and write its chemical symbol.

( c )

Write the ground‑state electron configuration of the element using the Aufbau principle. Include the noble‑gas shorthand notation.

( d )

If the atom loses electrons to attain the nearest noble‑gas configuration, write the symbol of the resulting ion and indicate its charge.

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About This Question

This is Neco 2019 Chemistry Question 1. It is one of the essay questions from the 2019 Neco Chemistry examination.

The question covers Atomic Structure, Bohr Model, Electron Configuration, Ions .

View More Neco 2019 Chemistry Questions More Neco Practice Questions Back to Questions

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