A) It is composed of protons and neutrons B) It is composed of protons and electrons C) It is composed of protons only D) It is composed of electrons and neutrons
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 neutrons and protons. D) have an equal number of charged and noncharged particles.
A) breaking a pencil B) burning wood C) cooking eggs D) digesting food
A) Discovery Date B) Atomic Number C) Alphabetical Order D) Atomic Mass
A) Protons B) Protons and Neutrons C) Valence Electrons D) Neutrons
A) pH B) density C) color D) shape
A) a total of eight protons and neutrons. B) eight protons in its nucleus. C) eight neutrons in its nucleus. D) a total of eight neutrons and electrons.
A) neutrons. B) protons. C) protons plus the number of neutrons. D) protons plus the number of electrons.
A) They are usually gases. B) They form negative ions with a -1 charge. C) They are located in the left-most column of the periodic table. 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) have only 1 valence electron B) exist in all three states of matter in normal conditions C) are nonreactive D) are all metals
A) On the left-most side. B) In the middle column of the periodic table. C) On the right side. D) In the bottom rows.
A) number; mass B) color; smell C) location; ionization D) mass;number
A) 6 neutrons B) 3 neutrons C) 12 neutrons D) 8 neutrons
A) Alkaline Metals B) Noble Gases C) Alkaline Earth D) Halogens
A) Alkaline Earth B) Noble Gases C) Halogens D) Akali
A) Halogens B) Alkaline Earth C) Alkali D) Noble Gases
A) Alkaline Earth B) Alkali C) Halogens D) Noble Gases
A) 3 B) 5 C) 4 D) 2
A) nonmetals B) metals C) metalloids
A) Mendleev B) Ms. Watson C) Mosely D) Einstein
A) According to atomic mass B) by date discovered C) according to atomic number D) alphabetically
A) Atomic Number-Atomic Mass B) Atomic Mass C) Atomic Number D) Atomic Mass-Atomic Number
A) Atomic Mass B) Atomic Number C) Atomic Mass-Atomic Number D) Atomic Number-Atomic mass
A) nucleus B) neutrons C) electrons D) protons
A) flammability B) reactivity C) color D) pH
A) pH B) shape C) texture D) density
A) adding dye B) crushing C) breaking D) burning
A) breaking B) burning C) precipitate forming D) rusting
A) vary within the same element B) can only be observed by changing the substance C) only can be seen in a few elements D) can be observed with senses
A) can be observes with the senses B) cn only be observed by changing the substance C) vary within the same element 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) meters B) second C) liters D) kelvin
A) hours B) kilograms C) meters D) grams
A) accurate B) both accurate and precise C) nethier accurate or precise D) precise
A) 100 B) 1/100 C) 1,000 D) 1/1,000
A) dependent B) control C) constant D) independent
A) strawberries B) growth C) fertilizer D) length of study
A) 0.0025m B) 2,500m
A) 1.65g B) 16.5g
A) 9.470x102 B) 9.470x10-2
A) 4.2x103 B) 4.2x10-3
A) 0.0000875 B) 875,000
A) 0.00634 B) 63,400
A) independent B) dependent C) control D) constant
A) beaker B) tongs C) graduated cylinder D) stirring rod
A) 16 B) 0 C) 10 D) 13
A) 18 B) 19 C) 35 D) 17
A) 26 B) 14 C) 12 D) 10
A) 2 B) 10 C) 18 D) 8
A) 5.7 amu B) 0.57 amu C) 57 amu D) 115 amu
A) 4 B) 1 C) 3 D) 2
A) 0.5 mol B) 67.2 mol C) 89.6 mol D) 2 mol
A) 21.07 atoms B) 1.72x1023 atoms C) 5.8x1022 atoms D) 2.107x1024 atoms
A) 12,144ft B) 2,295ft
A) 33.3kg B) 6.75kg
A) Dalton B) Rutherford C) Thomson D) Bohr
A) Democritus B) Rutherford C) Chadwick D) Thomson
A) Shrodinger and Heisenburg B) Thomson C) Bohr D) Rutherford
A) Bohr B) Thomson C) Dalton D) Rutherford
A) Atoms of the same element are exactly alike. B) All matter is made of atoms. C) Atoms combine to form compounds in simple whole number ratios.
A) Bohr B) Dalton C) Chadwick D) Rutherford
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) larger mass B) negative charge C) smaller mass D) positive charge
A) neutrons B) electrons C) protons D) positrons
A) 72g/ml B) 1.33g/ml C) 3g/ml D) 0.33g/ml
A) 17.5g B) 0.094g C) 10.7g D) 16g |