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