WHS-Chem Test 3 - Examen
A) It is composed of protons and electrons B) It is composed of protons and neutrons C) It is composed of electrons and neutrons D) It is composed of protons only
A) - B) 0 C) +
A) have an equal number of electrons and protons. B) have neutrons in their nuclei. C) have an equal number of charged and noncharged particles. D) have an equal number of neutrons and protons.
A) cooking eggs B) burning wood C) digesting food D) breaking a pencil
A) Atomic Mass B) Alphabetical Order C) Discovery Date D) Atomic Number
A) Valence Electrons B) Protons C) Protons and Neutrons D) Neutrons
A) density B) color C) pH D) shape
A) eight protons in its nucleus. B) a total of eight neutrons and electrons. C) eight neutrons in its nucleus. D) a total of eight protons and neutrons.
A) protons plus the number of neutrons. B) neutrons. C) protons. D) protons plus the number of electrons.
A) They are located in the left-most column of the periodic table. B) They are usually gases. C) They form negative ions with a -1 charge. D) They are extremely nonreactive.
A) They are extremely rare in nature. B) They are highly reactive with both metals and nonmetals. C) They form compounds with very bright colors. D) a basically nonreactive.
A) have only 1 valence electron B) exist in all three states of matter in normal conditions C) are all metals D) are nonreactive
A) On the left-most side. B) In the middle column of the periodic table. C) In the bottom rows. D) On the right side.
A) color; smell B) number; mass C) location; ionization D) mass;number
A) 8 neutrons B) 6 neutrons C) 12 neutrons D) 3 neutrons
A) Alkali Metals B) Noble Gases C) Alkaline Earth D) Halogens
A) Noble Gases B) Halogens C) Alkaline Earth D) Akali
A) Alkaline Earth B) Noble Gases C) Halogens D) Alkali
A) Alkaline Earth B) Halogens C) Noble Gases D) Alkali
A) 4 B) 2 C) 5 D) 3
A) metals B) metalloids C) nonmetals
A) Mendleev B) Einstein C) Ms. Watson D) Mosely
A) by date discovered B) alphabetically C) according to atomic number D) According to atomic mass
A) Atomic Number-Atomic Mass B) Atomic Number C) Atomic Mass-Atomic Number D) Atomic Mass
A) Atomic Number B) Atomic Mass C) Atomic Mass-Atomic Number D) Atomic Number-Atomic mass
A) nucleus B) protons C) neutrons D) electrons
A) color B) flammability C) pH D) reactivity
A) breaking B) adding dye C) burning D) crushing
A) can only be observed by changing the substance B) only can be seen in a few elements C) can be observed with senses D) vary within the same element
A) cn only be observed by changing the substance B) vary within the same element C) can be observes with the senses D) only can be observed in a few elements
A) physical B) chemical
A) physical B) chemical
A) it will float B) not enough information C) it will sink
A) hours B) meters C) grams D) kilograms
A) precise B) accurate C) nethier accurate or precise D) both accurate and precise
A) 1/100 B) 1,000 C) 1/1,000 D) 100
A) independent B) control C) constant D) dependent
A) growth B) fertilizer C) strawberries D) length of study
A) constant B) dependent C) independent D) control
A) graduated cylinder B) tongs C) stirring rod D) beaker
A) 16 B) 10 C) 0 D) 13
A) 19 B) 18 C) 35 D) 17
A) 12 B) 10 C) 14 D) 26
A) 10 B) 8 C) 18 D) 2
A) 115 amu B) 5.7 amu C) 57 amu D) 0.57 amu
A) 1 B) 2 C) 3 D) 4
A) Thomson B) Dalton C) Rutherford D) Bohr
A) Rutherford B) Thomson C) Chadwick D) Democritus
A) Rutherford B) Bohr C) Thomson D) Shrodinger and Heisenburg 
A) Dalton B) Bohr C) Rutherford D) Thomson
A) All matter is made of atoms. B) Atoms of the same element are exactly alike. C) Atoms combine to form compounds in simple whole number ratios.
A) Dalton B) Chadwick C) Bohr D) Rutherford
A) The mass of electrons is much smaller than the mass of protons and neutrons. B) Electron number never changes. C) Electrons are positively charged. D) The mass of protons and neutrons are much smaller than the mass of the electron.
A) larger mass B) smaller mass C) positive charge D) negative charge
A) positrons B) electrons C) neutrons D) protons
A) 72g/ml B) 0.33g/ml C) 1.33g/ml D) 3g/ml
A) 0.094g B) 10.7g C) 17.5g D) 24g |
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