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) 0 C) +
A) have neutrons in their nuclei. B) have an equal number of neutrons and protons. C) have an equal number of charged and noncharged particles. D) have an equal number of electrons and protons.
A) burning wood B) digesting food C) cooking eggs D) breaking a pencil
A) Alphabetical Order B) Discovery Date C) Atomic Number D) Atomic Mass
A) Protons B) Protons and Neutrons C) Neutrons D) Valence Electrons
A) color B) shape C) density D) pH
A) a total of eight neutrons and electrons. B) a total of eight protons and neutrons. C) eight protons in its nucleus. D) eight neutrons in its nucleus.
A) protons. B) neutrons. C) protons plus the number of electrons. D) protons plus the number of neutrons.
A) They form negative ions with a -1 charge. B) They are extremely nonreactive. C) They are usually gases. D) They are located in the left-most column of the periodic table.
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 all metals B) have only 1 valence electron C) are nonreactive D) exist in all three states of matter in normal conditions
A) On the left-most side. B) In the bottom rows. C) On the right side. D) In the middle column of the periodic table.
A) mass;number B) color; smell C) number; mass D) location; ionization
A) 12 neutrons B) 3 neutrons C) 6 neutrons D) 8 neutrons
A) Alkaline Metals B) Alkaline Earth C) Halogens D) Noble Gases
A) Halogens B) Noble Gases C) Alkaline Earth D) Akali
A) Noble Gases B) Halogens C) Alkaline Earth D) Alkali
A) Noble Gases B) Halogens C) Alkali D) Alkaline Earth
A) 2 B) 4 C) 5 D) 3
A) nonmetals B) metalloids C) metals
A) Mendleev B) Einstein C) Ms. Watson D) Mosely
A) by date discovered B) according to atomic number C) alphabetically D) According to atomic mass
A) Atomic Number-Atomic Mass B) Atomic Number C) Atomic Mass D) Atomic Mass-Atomic Number
A) Atomic Number B) Atomic Number-Atomic mass C) Atomic Mass D) Atomic Mass-Atomic Number
A) electrons B) protons C) neutrons D) nucleus
A) flammability B) pH C) reactivity D) color
A) shape B) texture C) pH D) density
A) adding dye B) crushing C) burning D) breaking
A) burning B) breaking C) precipitate forming D) rusting
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) 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) physical B) chemical
A) chemical B) physical
A) it will sink B) it will float C) not enough information
A) meters B) second C) liters D) kelvin
A) meters B) grams C) hours D) kilograms
A) nethier accurate or precise B) accurate C) precise D) both accurate and precise
A) 1/1,000 B) 1/100 C) 100 D) 1,000
A) control B) constant C) independent D) dependent
A) growth B) fertilizer C) length of study D) strawberries
A) 0.0025m B) 2,500m
A) 1.65g B) 16.5g
A) 9.470x102 B) 9.470x10-2
A) 4.2x10-3 B) 4.2x103
A) 0.0000875 B) 875,000
A) 63,400 B) 0.00634
A) independent B) constant C) dependent D) control
A) stirring rod B) beaker C) graduated cylinder D) tongs
A) 0 B) 10 C) 13 D) 16
A) 19 B) 17 C) 35 D) 18
A) 10 B) 26 C) 12 D) 14
A) 8 B) 18 C) 2 D) 10
A) 5.7 amu B) 57 amu C) 115 amu D) 0.57 amu
A) 4 B) 3 C) 1 D) 2
A) 67.2 mol B) 89.6 mol C) 2 mol D) 0.5 mol
A) 21.07 atoms B) 2.107x1024 atoms C) 5.8x1022 atoms D) 1.72x1023 atoms
A) 12,144ft B) 2,295ft
A) 33.3kg B) 6.75kg
A) Dalton B) Bohr C) Thomson D) Rutherford
A) Rutherford B) Thomson C) Chadwick D) Democritus
A) Rutherford B) Thomson C) Shrodinger and Heisenburg D) Bohr
A) Dalton B) Rutherford C) Thomson D) Bohr
A) All matter is made of atoms. B) Atoms combine to form compounds in simple whole number ratios. C) Atoms of the same element are exactly alike.
A) Chadwick B) Rutherford C) Bohr D) Dalton
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) positive charge B) negative charge C) smaller mass D) larger mass
A) protons B) electrons C) neutrons D) positrons
A) 0.33g/ml B) 72g/ml C) 1.33g/ml D) 3g/ml
A) 10.7g B) 17.5g C) 16g D) 0.094g |