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