Sum

2.1 Atoms and Elements

1. Atoms are composed of electrons, protons, and neutrons. (Figure 2.1)

2. An element consists of a single type of atom.

2.2 Chemical Bonds and the Formation of Molecules

1. For maximum stability, the outer orbital of electrons of an atom must be filled. The electrons in different orbitals have different energy levels. Bonds form between atoms to fill their outer orbitals with electrons.

Covalent Bonds

1. Covalent bonds are strong bonds formed by atoms sharing electrons. (Figure 2.2)

Non-Polar and Polar Covalent Bonds

1. When atoms have an equal attraction for electrons, a non-polar covalent bond is formed between them. (Table 2.2)

Was this article helpful?

0 0
Peripheral Neuropathy Natural Treatment Options

Peripheral Neuropathy Natural Treatment Options

This guide will help millions of people understand this condition so that they can take control of their lives and make informed decisions. The ebook covers information on a vast number of different types of neuropathy. In addition, it will be a useful resource for their families, caregivers, and health care providers.

Get My Free Ebook


Post a comment