02_minerals_10-post

02_minerals_10-post - ture 2: 1 02: Earth...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ture 2: 1 02: Earth Materials--Minerals Halite crystals. Photo: C.D. Winter ture 2: 2 Why is this topic important? Earth is made of rocks, which are composed of minerals. Minerals provide clues to origin of rocks and vice versa. Ore minerals are source for valuable metals such as copper, gold & silver and energy sources such as uranium. Industrial minerals serve as raw materials for manufacturing. Gem quality minerals give sparkle to jewelry. Native sulfur www.treasuremountainmining.com/ Native gold St. John et al. (1984) E m e r a l d ( b e r y l ) O N e i l e t a l . ( 1 9 8 3 ) ture 2: 3 Definition of Mineral-- Solid material with a specific chemical composition-- Solid material with a specific chemical composition-- Solid material with a regular arrangement of atoms-- Solid material with a regular arrangement of atoms-- Naturally occurring-- Naturally occurring-- Inorganic-- Inorganic Halite crystals Photo: C.D. Winter ture 2: 4 Review of chemistry Elements : the most fundamental substances into which matter can be separated and analyzed by ordinary chemical means Atom : smallest particle that still retains the distinctive properties of a given element. Atoms of different elements have different numbers and arrangements of protons, neutrons, and electrons ture 2: 5 Review of chemistry Each element has a unique chemical symbol Element (symbol) Percent by weight in crust Oxygen (O) 45.2% Silicon (Si) 27.2% Aluminum (Al) 8.0% Iron (Fe) 5.8% Calcium (Ca) 5.1% Magnesium (Mg) 2.8% Sodium (Na) 2.3% Potassium (K) 1.7% Titanium (Ti) 0.9% Hydrogen (H) 0.1% ture 2: 6 Chemistry: Atomic structure Nucleus : core of the atom containing protons and neutrons Proton : particle with mass and a positive charge. Neutron : particle with mass and no charge. Electrons : particle with negligible mass and a negative charge that orbit the nucleus in specific shells. Atoms of same element have the same number of protons Atomic number : number of protons in an element. Example: aluminum always has 13 protons; its atomic number is 13 . Fig. a.4 Fig. a.4 ture 2: 7 Chemistry: Atomic structure Isotopes : atoms of the same element with the same number of protons but different numbers of neutrons. Fig. a.7 Fig. a.7 1 proton 1 electron 0 neutron 1 proton 1 electron 1 neutron 1 proton 1 electron 2 neutrons ture 2: 8 Atomic Structure: iClicker Q1. Two isotopes of oxygen are O 16 and O 18 , where the "16" and "18" refer to the total number of protons and neutrons in each atom. Refer to the periodic table of elements below. Which statement below is true? A. O 16 contains 16 protons and O 18 contains 18 protons. B. O 16 contains 16 neutrons and O 18 contains 18 neutrons....
View Full Document

This note was uploaded on 01/29/2012 for the course 460 100 taught by Professor Schlsche during the Fall '09 term at Rutgers.

Page1 / 45

02_minerals_10-post - ture 2: 1 02: Earth...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online