(b) If we add one electron to form the He atom, would your answer to part (a) change?

Verified step by step guidance

1. Identify the original atom or ion discussed in part (a) and its electron configuration.
2. Understand that adding one electron to the He atom would change its electron configuration and potentially its stability.
3. Consider the effect of adding an electron on the atomic radius and the overall charge of the atom.
4. Analyze how the change in electron configuration affects the chemical properties of the atom, such as reactivity and ionization energy.
5. Conclude whether these changes would alter the answer provided in part (a) based on the properties discussed.

Key Concepts

Atomic Structure

Atomic structure refers to the arrangement of protons, neutrons, and electrons within an atom. In the case of helium (He), it has two protons and two neutrons in its nucleus, with two electrons orbiting around it. Understanding atomic structure is crucial for analyzing how adding or removing electrons affects the atom's properties and behavior.

Ionization and Electron Configuration

Ionization involves the addition or removal of electrons from an atom, leading to the formation of ions. When an electron is added to a neutral helium atom, it becomes a negatively charged ion (He-). This change in electron configuration can significantly alter the atom's chemical properties and reactivity, which is essential for answering the question.

Chemical Properties of Elements

The chemical properties of elements are determined by their electron configurations, particularly the arrangement of valence electrons. Adding an electron to helium changes its electron configuration, which can influence its reactivity and interactions with other elements. Understanding these properties is vital for predicting how the atom will behave in different chemical contexts.