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