Test
Chapter 9: Matter and Elements
Preguntas del test (11)
1What is an atom?
- Athe samllest particle in nature important for geoloogy
- Ban apple in a pubescent man's throat.
2What is the charge on an electron?
- Apositive
- Bnegative
- Cno charge
3What is the charge on a neutron?
- Apositive
- Bnegative
- Cno charge
4What is the charge on a proton?
- Apositive
- Bnegative
- Cno charge
5What is the atomic number?
- Athe number of protons and neutrons
- Bthe number of protons or electrons
6What is the atomic mass?
- Athe number of protons and neutrons
- Bthe number of protons or electrons
7What is ionic bonding?
- Athe transfer of outermost electrons; inner electrons not involved; ex: bonding in Na & Cl
- Batoms share electrons (strongest bonds); electrons in outermost shells of atoms form an electron cloud that surrounds two or three nuclei; diamond mineral
8What is covalent bonding?
- Aatoms share electrons (strongest bonds); electrons in outermost shells of atoms form an electron cloud that surrounds two or three nuclei; diamond mineral
- Bbonding between atoms of copper. gold, or silver, metals; all outermost electrons of all atoms shared by all nuclei present in the metal; electrons are free to travel from one nucleus to another ; freedom of movement makes possible flow of electricity (Au)
9What is metallic bonding?
- Abonding between atoms of copper. gold, or silver, metals; all outermost electrons of all atoms shared by all nuclei present in the metal; electrons are free to travel from one nucleus to another ; freedom of movement makes possible flow of electricity (Au)
- Bweakest of all the bonds; not strong enough to hold atoms or molecules together, but assist other types of bond; holds water molecules together and layers in mineral graphite (graphite = carbon)
10what are Van Der Waal's bonds?
- Aweakest of all the bonds; not strong enough to hold atoms or molecules together, but assist other types of bond; holds water molecules together and layers in mineral graphite (graphite = carbon)
- Btransfer of outermost electrons; inner electron shells or nucleus not involved (NaCl); very common in Earth materials
11What is a polymorph?
- Aatoms of AA decay to atoms of BB with a half-life of 100,000 years
- Btwo minerals that have very different appearances and properties, but have exactly the same chemical composition (graphite and diamond)
Información
- Descripción
- Test sobre Chapter 9: Matter and Elements, creado por Keyaira Branch el 11/05/2017.
- Autor
- Keyaira Branch
- Idioma
- English
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- 4
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