A) It is composed of protons and electrons B) It is composed of electrons and neutrons C) It is composed of protons only D) It is composed of protons and neutrons
A) - B) 0 C) +
A) have an equal number of neutrons and protons. B) have an equal number of electrons and protons. C) have neutrons in their nuclei. D) have an equal number of charged and noncharged particles.
A) burning wood B) cooking eggs C) digesting food D) breaking a pencil
A) Alphabetical Order B) Atomic Number C) Atomic Mass D) Discovery Date
A) Protons and Neutrons B) Valence Electrons C) Protons D) Neutrons
A) color B) shape C) pH D) density
A) eight protons in its nucleus. B) a total of eight protons and neutrons. C) a total of eight neutrons and electrons. D) eight neutrons in its nucleus.
A) protons plus the number of electrons. B) protons plus the number of neutrons. C) protons. D) neutrons.
A) They are usually gases. B) They form negative ions with a -1 charge. C) They are extremely nonreactive. D) They are located in the left-most column of the periodic table.
A) They form compounds with very bright colors. B) a basically nonreactive. C) They are extremely rare in nature. D) They are highly reactive with both metals and nonmetals.
A) have only 1 valence electron B) are all metals C) are nonreactive 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) In the bottom rows. D) On the right side.
A) number; mass B) mass;number C) location; ionization D) color; smell
A) 12 neutrons B) 8 neutrons C) 3 neutrons D) 6 neutrons
A) Noble Gases B) Alkaline Earth C) Halogens D) Alkaline Metals
A) Halogens B) Noble Gases C) Alkaline Earth D) Akali
A) Noble Gases B) Halogens C) Alkaline Earth D) Alkali
A) Halogens B) Alkali C) Noble Gases D) Alkaline Earth
A) 5 B) 3 C) 4 D) 2
A) metalloids B) metals C) nonmetals
A) Mosely B) Mendleev C) Ms. Watson D) Einstein
A) by date discovered B) According to atomic mass C) according to atomic number D) alphabetically
A) Atomic Mass-Atomic Number B) Atomic Number C) Atomic Number-Atomic Mass D) Atomic Mass
A) Atomic Number B) Atomic Mass-Atomic Number C) Atomic Number-Atomic mass D) Atomic Mass
A) protons B) nucleus C) neutrons D) electrons
A) flammability B) color C) pH D) reactivity
A) shape B) texture C) density D) pH
A) adding dye B) crushing C) breaking D) burning
A) rusting B) burning C) precipitate forming 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) only can be observed in a few elements B) vary within the same element 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) liters B) second C) meters D) kelvin
A) hours B) grams C) meters D) kilograms
A) both accurate and precise B) precise C) nethier accurate or precise D) accurate
A) 1,000 B) 1/100 C) 1/1,000 D) 100
A) independent B) constant C) control D) dependent
A) fertilizer B) length of study C) strawberries D) growth
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) 875,000 B) 0.0000875
A) 0.00634 B) 63,400
A) independent B) dependent C) control D) constant
A) tongs B) graduated cylinder C) beaker D) stirring rod
A) 10 B) 0 C) 16 D) 13
A) 18 B) 19 C) 35 D) 17
A) 10 B) 12 C) 26 D) 14
A) 8 B) 10 C) 2 D) 18
A) 5.7 amu B) 0.57 amu C) 115 amu D) 57 amu
A) 2 B) 3 C) 1 D) 4
A) 2 mol B) 89.6 mol C) 0.5 mol D) 67.2 mol
A) 1.72x1023 atoms B) 5.8x1022 atoms C) 2.107x1024 atoms D) 21.07 atoms
A) 12,144ft B) 2,295ft
A) 33.3kg B) 6.75kg
A) Dalton B) Rutherford C) Thomson D) Bohr
A) Rutherford B) Thomson C) Chadwick D) Democritus
A) Rutherford B) Thomson C) Bohr D) Shrodinger and Heisenburg
A) Bohr B) Thomson C) Rutherford D) Dalton
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) Rutherford B) Dalton C) Bohr D) Chadwick
A) Electron number never changes. B) The mass of protons and neutrons are much smaller than the mass of the electron. C) Electrons are positively charged. D) The mass of electrons is much smaller than the mass of protons and neutrons.
A) positive charge B) smaller mass C) negative charge D) larger mass
A) neutrons B) positrons C) protons D) electrons
A) 72g/ml B) 1.33g/ml C) 0.33g/ml D) 3g/ml
A) 17.5g B) 16g C) 10.7g D) 0.094g |