Quiz 6 - Lecture notes 6 PDF

Preview

Summary

quiz 6...

Description

Question 1 1 / 1 pts Solid materials that do not possess an orderly arrangement of atoms are called Correct! glasses

minerals crystals

polymorphs

Question 2 1 / 1 pts Which of the following substances is not considered a mineral? Correct! coal

diamond

gypsum

rock salt

Question 3 1 / 1 pts Isotopes of a given element have the same number of protons and the same atomic mass Correct! the same number of protons but different atomic masses

different numbers of protons but the same atomic mass

different numbers of protons and different atomic masses

Question 4 1 / 1 pts Which of the following subatomic particles has a positive charge? electron neutron Correct! proton

all of the above

Question 5 1 / 1 pts Sodium has an atomic number of 11. How many electrons will the sodium ion Na+ have? 1 Correct! 10

11 12

Question 6 1 / 1 pts Isotopes of an element have different numbers of

electrons Correct! neutrons

protons

electrons, neutrons, and protons

Question 7 1 / 1 pts What is the term for atoms of the same element that have different numbers of neutrons? electrons

ions Correct! isotopes

polymorphs

Question 8 1 / 1 pts Carbon has an atomic number of 6 and an atomic mass of 12. This means that carbon atoms have six protons and 12 neutrons six neutrons and 12 protons

six protons and a density of 12 grams per cubic centimeter

Correct! six protons and six neutrons

Question 9 1 / 1 pts The atomic mass of an element is equal to the number of protons Correct! protons plus neutrons

neutrons

protons plus neutrons plus electrons

Question 10 1 / 1 pts What will be the charge of an atom containing eight protons, nine neutrons, and 10 electrons? Correct! -2

-1

+1

+2

Question 11 1 / 1 pts How are the elements organized in the periodic table? in order of increasing density

in order of increasing number of electrons in order of increasing number of neutrons Correct! in order of increasing number of protons

Question 12 1 / 1 pts What does the symbol Na+ represent? a sodium proton Correct! a sodium cation

a sodium electron

a sodium anion

Question 13 1 / 1 pts In order to make a sodium (Na) chlorine (Cl) bond in NaCl, one electron is transferred from the chlorine atom to the sodium atom. Correct! one electron is transferred from the sodium atom to the chlorine atom. two electrons are transferred from the chlorine atom to the sodium atom.

two electrons are transferred from the sodium atom to the chlorine atom.

Question 14 1 / 1 pts Chemical substances that have exactly the same chemical formula but different crystal structures are called electrons

ions isotopes Correct! polymorphs

Question 15 1 / 1 pts The most common rock-forming minerals in the crust are carbonates

oxides Correct! silicates

sulfides

Question 16 1 / 1 pts The two most common elements in Earth's crust are calcium and carbon

iron and sulfur

chlorine and sodium Correct! oxygen and silicon

Question 17 1 / 1 pts Mica is a common example of a ________ silicate. framework

single-chain

double-chain Correct! sheet

Question 18 1 / 1 pts _________ and __________ are examples of polymorphs. Quartz; feldspar Correct! Diamond; graphite

Biotite; mica Pyroxene; amphibole

Question 19 1 / 1 pts Which of the following minerals is a framework silicate?

quartz

orthoclase feldspar plagioclase feldspar Correct! They are all framework silicates

Question 20 1 / 1 pts The silica tetrahedra readily bonds with cations when available because it has a net positive charge

it is electrically neutral Correct! it has a net negative charge

its internal bonds are very weak

Question 21 1 / 1 pts Rocks that form from the solidification of molten rock are called metamorphic

sedimentary Correct! igneous

chemical

Question 22 1 / 1 pts _________ is the most common mineral or mineral group in Earth's crust. Calcite

Pyroxene Quartz Correct! Fe;dspar

Question 23 1 / 1 pts _________ is the most common mineral or mineral group in the Earth as a whole. Pyroxene

Garnet Correct! Perovskite

Feldspar

Question 24 1 / 1 pts As we go deeper in Earth and the pressure grows we encounter minerals with lower density

higher silica content Correct! more compact crystal structures more open crystal structures

Question 25 1 / 1 pts What is the most common type of bonding in minerals? covalent bonding Correct! ionic bonding

metallic bonding

nuclear bonding

Question 26 1 / 1 pts What is the strongest type of bonding found in minerals? Correct! covalent bonding

ionic bonding

metallic bonding nuclear bonding...