A) It is composed of protons and neutrons B) It is composed of protons and electrons C) It is composed of electrons and neutrons D) It is composed of protons only
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 neutrons and protons. D) have an equal number of charged and noncharged particles.
A) breaking a pencil B) cooking eggs C) burning wood D) digesting food
A) Alphabetical Order B) Atomic Mass C) Atomic Number D) Discovery Date
A) Neutrons B) Protons C) Protons and Neutrons D) Valence Electrons
A) color B) shape C) density D) pH
A) eight neutrons in its nucleus. B) eight protons in its nucleus. C) a total of eight neutrons and electrons. D) a total of eight protons and neutrons.
A) protons plus the number of electrons. B) neutrons. C) protons. D) protons plus the number of neutrons.
A) They are usually gases. B) They are located in the left-most column of the periodic table. C) They form negative ions with a -1 charge. D) They are extremely nonreactive.
A) They form compounds with very bright colors. B) They are extremely rare in nature. C) a basically nonreactive. D) They are highly reactive with both metals and nonmetals.
A) are nonreactive B) are all metals C) have only 1 valence electron D) exist in all three states of matter in normal conditions
A) In the middle column of the periodic table. B) On the left-most side. C) On the right side. D) In the bottom rows.
A) mass;number B) location; ionization C) color; smell D) number; mass
A) 6 neutrons B) 8 neutrons C) 12 neutrons D) 3 neutrons
A) Alkaline Metals B) Alkaline Earth C) Noble Gases D) Halogens
A) Alkaline Earth B) Noble Gases C) Akali D) Halogens
A) Alkali B) Halogens C) Alkaline Earth D) Noble Gases
A) Alkali B) Alkaline Earth C) Noble Gases D) Halogens
A) 4 B) 5 C) 3 D) 2
A) metalloids B) metals C) nonmetals
A) Einstein B) Mendleev C) Mosely D) Ms. Watson
A) by date discovered B) according to atomic number C) alphabetically D) According to atomic mass
A) Atomic Mass-Atomic Number B) Atomic Mass C) Atomic Number-Atomic Mass D) Atomic Number
A) Atomic Mass B) Atomic Mass-Atomic Number C) Atomic Number-Atomic mass D) Atomic Number
A) neutrons B) nucleus C) electrons D) protons
A) flammability B) reactivity C) pH D) color
A) pH B) shape C) density D) texture
A) crushing B) adding dye C) burning D) breaking
A) rusting B) precipitate forming C) burning D) breaking
A) can be observed with senses B) only can be seen in a few elements C) vary within the same element D) can only be observed by changing the substance
A) can be observes with the senses B) vary within the same element C) only can be observed in a few elements D) cn only be observed by changing the substance
A) physical B) chemical
A) physical B) chemical
A) not enough information B) it will sink C) it will float
A) kelvin B) meters C) second D) liters
A) grams B) meters C) hours D) kilograms
A) accurate B) precise C) nethier accurate or precise D) both accurate and precise
A) 100 B) 1/1,000 C) 1,000 D) 1/100
A) constant B) dependent C) control D) independent
A) fertilizer B) growth C) strawberries D) length of study
A) 0.0025m B) 2,500m
A) 16.5g B) 1.65g
A) 9.470x10-2 B) 9.470x102
A) 4.2x103 B) 4.2x10-3
A) 875,000 B) 0.0000875
A) 0.00634 B) 63,400
A) independent B) constant C) dependent D) control
A) stirring rod B) beaker C) tongs D) graduated cylinder
A) 13 B) 16 C) 10 D) 0
A) 17 B) 18 C) 35 D) 19
A) 12 B) 10 C) 26 D) 14
A) 8 B) 18 C) 2 D) 10
A) 5.7 amu B) 115 amu C) 57 amu D) 0.57 amu
A) 4 B) 3 C) 2 D) 1
A) 2 mol B) 0.5 mol C) 89.6 mol D) 67.2 mol
A) 1.72x1023 atoms B) 2.107x1024 atoms C) 21.07 atoms D) 5.8x1022 atoms
A) 12,144ft B) 2,295ft
A) 6.75kg B) 33.3kg
A) Thomson B) Bohr C) Rutherford D) Dalton
A) Thomson B) Rutherford C) Chadwick D) Democritus
A) Bohr B) Thomson C) Rutherford D) Shrodinger and Heisenburg
A) Rutherford B) Dalton C) Thomson D) Bohr
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) Electrons are positively charged. C) The mass of protons and neutrons are much smaller than the mass of the electron. D) Electron number never changes.
A) positive charge B) smaller mass C) negative charge D) larger mass
A) protons B) positrons C) neutrons D) electrons
A) 72g/ml B) 1.33g/ml C) 3g/ml D) 0.33g/ml
A) 16g B) 10.7g C) 0.094g D) 17.5g |