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Chemistry of Life.
Title: Chemistry of Life.
Category: Literature
Details: Words: 383 | Pages: 1.6 (approximately 235 words/page)
Chemistry of Life.
Chapter 6: The Chemistry of Life
Ch. 6.1 Atoms & Their Interactions
Both living and nonliving things are composed of the same basic building blocks called atoms.
Elements
Element- a substance that can't be broken down into simpler chemical substances.
On Earth, 90 elements occur naturally
Natural elements in living things-
Only about 25 of 90 elements are essential to living organisms. Each element is identified by a one or two letter abbreviation ex: C - carbon
Trace elements-
Exist …showed first 75 words of 383 total…
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…showed last 75 words of 383 total…share electrons
Molecules- a group of atoms held together by covalent bonds and having no overall charge
For example: water H2O has two Hydrogen atoms and one Oxygen atom
How ionic bonds form-
An atom (or group of atoms) that gains or loses electrons has an electrical charge
Ion- a charged particle
Ionic bond- the attractive force between two ions of opposite charge
Ionic bonds are less abundant in living things than covalent molecules
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