Question

An atom that has two electrons in the valence shell, such as magnesium, would most likely a. share to acquire a completed outer shell. b. lose these two electrons and become a negatively charged ion. c. lose these two electrons and become a positively charged ion. d. bind with carbon by way of hydrogen bonds. e. bind with another magnesium atom to satisfy its energy needs.

Name: Problem 5, Chapter 2: Biology
Uploaded: 2019-07-10T00:15:38-08:00
Duration: 3 min 5 s
Channel: Bryan Lynn
Description: An atom that has two electrons in the valence shell, such as magnesium, would most likely a. share to acquire a completed outer shell. b. lose these two electrons and become a negatively charged ion. c. lose these two electrons and become a positively charged ion. d. bind with carbon by way of hydrogen bonds. e. bind with another magnesium atom to satisfy its energy needs.

   An atom that has two electrons in the valence shell, such as magnesium, would most likely
a. share to acquire a completed outer shell.
b. lose these two electrons and become a negatively charged ion.
c. lose these two electrons and become a positively charged ion.
d. bind with carbon by way of hydrogen bonds.
e. bind with another magnesium atom to satisfy its energy needs.

Biology

Sylvia S. Mader,… 12th Edition

Chapter 2, Problem 5

Instant Answer

Solved by Expert Bryan Lynn

07/10/2019

Step 1

Magnesium has an atomic number of 12, which means it has 12 protons. In a neutral atom, the number of protons equals the number of electrons, so magnesium also has 12 electrons. These electrons are distributed in different energy levels or shells around the Show more…

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An atom that has two electrons in the valence shell, such as magnesium, would most likely a. share to acquire a completed outer shell. b. lose these two electrons and become a negatively charged ion. c. lose these two electrons and become a positively charged ion. d. bind with carbon by way of hydrogen bonds. e. bind with another magnesium atom to satisfy its energy needs.

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Key Concepts

Ion Formation

Ion formation involves the loss or gain of electrons by an atom, resulting in a charged particle. When an atom loses electrons, it becomes a positive ion (cation); when it gains electrons, it becomes a negative ion (anion). This process is a fundamental mechanism by which atoms achieve a lower energy, more stable state.

Octet Rule

The octet rule is a chemical guideline that atoms tend to form bonds in such a way that they each attain a full set of eight valence electrons, resembling the electron configuration of noble gases. To achieve this state, atoms will often lose, gain, or share electrons during chemical reactions.

Valence Electrons

Valence electrons are the electrons in the outermost shell of an atom that participate in chemical bonding. Their number determines how an atom interacts with other atoms, and atoms tend to lose, gain, or share these electrons to achieve a more stable electron configuration, often modeled after the noble gases.

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