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PHS TEST 3
Fichas del conjunto (61)
- 1The most massive subatomic particle is thenucleus
- 2An element is best described as a materialconsisting of only one type of atom
- 3The element bromine has two major isotopes, both around 50 percent. The atomic mass is 79.904. What is most likely the mass numbers for these two bromine isotopes?Br-79, Br-81
- 4What is the approximate mass of a carbon atom? Carbon dioxide?Carbon, 12 amu, carbon dioxide 44 amu
- 5What has more atoms: 1 gram samob of carbon-12, or a 1 gram sample of carbon 13?a 1 gram sample of carbon 12
- 6the nucleus of an electrically neutral iron atom contains 26 protons. How many electrons does this iron atom have?26
- 7You could swallow a capsule of germanium without significant ill effects. If a proton were added to each germanium nucleus, however, you would not want to swallow the capsule because the germanium would...become arsenic
- 8If a neutral element has the following chemical symbol, how many electrons does it have? 235/92 U92
- 9If a neutral element has the following chemical symbol, how many electrons does it have? 18/6 O6
- 10If a neutral element has the following chemical notation, how many electrons does it have? fluorine-199
- 11f a neutral element has the following chemical notation, how many electrons does it have? carbon-136
- 12If a neutral element has 8 neutrons and 7 electrons, which expression correctly identities the element?15/7 N
- 13If an element has 9 protons, 10 neutrons, and 9 electrons, which expression correctly identifies the element?19/9 F
- 14If an element has 10 protons, 11 neutrons, and 10 electrons, which expression correctly identifies the element?neon-21
- 15If an element has 18 protons, 20 neutrons, and 18 electrons, which expression correctly identifies the element??argon-38
- 16If an element has 15 protons, 16 neutrons and 15 electrons, what is the mass numbre of the element?31
- 17If you remove two protons and two neutrons from a gold atom, what new elements is formed?Iron (Ir)
- 18Using the following generic atom description, choose the correct method for determining the number of neutrons. F/G Xsubtract G from F
- 19What does the following element description actually mean? hydrogen-2a hydrogen with one neutron and one proton
- 20What does the following element description actually mean? iron-57iron with a mass number of 57
- 21The mass number of an element isthe sum of the protons and neutrons
- 22Which element has the atomic number 9?F
- 23The following statement describes which subatomic particle best? It does not have an electrical charge.neutron
- 24The following statement describes which subatomic particle best? It is a nucleon.an electron and a neutron
- 25The following statement describes which subatomic particle best? it is located outside of the nucleusan electron
- 26About how many elements do you have access to as a consumer of market goods?ten
- 27Which of the following physical properties would you expect for krypton?a gas at room temp
- 28Which of the following elements will most likely be shiney and malleable?rhodium
- 29Which of the following elements isi int he fourth period?chromium
- 30Which of the following elements is a transition metal?silver
- 31Which of the following element is an alkali metal?lithium
- 32Which of the following elements is a halogen?chlorine
- 33Elements that are in the same _____ have a tendency to have very similar chemicla properties due to periodic trends.group
- 34Which of the following elements are in the same group as silicon?Carbon
- 35Which of the following elements are in the same period as magnesium?Cl
- 36Which atom is smallest?Be
- 37Which atom is largest?Rb
- 38What are metalloids?elements that have some properties like metals and some like nonmetals
- 39Which of the following is not a nonmetal?titanium
- 40Which of the following describes a nonmetal?poor conductor of electricity
- 41Which of these properties describes a metal?conducts heat very well
- 42The ____ represents the complete range of frequencies of light energy from radio waves to cosmic rays.electromagnetic spectrum
- 43The color of a firework comes from the glowing ofatoms
- 44When a rainbow if colors of light are contained into a single ray it fomrswhite
- 45A practical application of the wave nature of electrons is the...electron microscope
- 46Which of the following is not generally thought of as matterlight
- 47Which of the following can be classified as matter?water perfume sand
all of the above - 48What is found in between the particles of a gas?nothing
- 49There are about100 different types of atoms
- 50Which of the following is an example of a chemical change?gasoline being used in the engine of a car producing exhaust
- 51which of the following would not be considered a chemical property?the temperature at which a liquid will boil
- 52Which of the following would be considere a chemical property?reactivity towards water.
- 53which of the following would be considreed a physical property?density
- 54A chemical change invovesthe formation or breaking ofa chemical bond
- 55A chemical change results innew materials
- 56water and ethanol can be separated by heating the ethanol until it boils away from the water. What type of change is this?a physical change
- 57Classify the following changes as physical or chemical. Wood burns to ashes, water begins to boil; grass grows; a rock is crushed to powder.chemical; physical; chemical; physical
- 58Which of the following is NOT a chemical change?a rock being crushed to powder
- 59How many different elements are in the compound C6H12O6?3
- 60How many oxygen atoms are in H3OClO4?5
- 61—
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- Fichas sobre PHS TEST 3, creado por Lindsey McCullers el 24/04/2025.
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- Lindsey McCullers
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