A) It is composed of protons and neutrons B) It is composed of electrons and neutrons C) It is composed of protons and electrons 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) digesting food B) breaking a pencil C) burning wood D) cooking eggs
A) Alphabetical Order B) Atomic Mass C) Atomic Number D) Discovery Date
A) Valence Electrons B) Protons and Neutrons C) Protons D) Neutrons
A) color B) shape C) density D) pH
A) eight neutrons in its nucleus. B) a total of eight neutrons and electrons. C) eight protons in its nucleus. D) a total of eight protons and neutrons.
A) protons plus the number of electrons. B) protons plus the number of neutrons. C) neutrons. D) protons.
A) They are usually gases. B) They are located in the left-most column of the periodic table. C) They form negative ions with a -1 charge. D) They are extremely nonreactive.
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) are nonreactive B) have only 1 valence electron C) are all metals D) exist in all three states of matter in normal conditions
A) On the left-most side. B) On the right side. C) In the bottom rows. D) In the middle column of the periodic table.
A) number; mass B) mass;number C) location; ionization D) color; smell
A) 8 neutrons B) 6 neutrons C) 3 neutrons D) 12 neutrons
A) Alkaline Metals B) Halogens C) Alkaline Earth D) Noble Gases
A) Alkaline Earth B) Halogens C) Akali D) Noble Gases
A) Alkaline Earth B) Alkali C) Noble Gases D) Halogens
A) Alkaline Earth B) Halogens C) Alkali D) Noble Gases
A) 5 B) 3 C) 4 D) 2
A) metalloids B) nonmetals C) metals
A) Mosely B) Einstein C) Ms. Watson D) Mendleev
A) According to atomic mass B) according to atomic number C) by date discovered D) alphabetically
A) Atomic Number B) Atomic Number-Atomic Mass C) Atomic Mass-Atomic Number D) Atomic Mass
A) Atomic Number-Atomic mass B) Atomic Mass C) Atomic Mass-Atomic Number D) Atomic Number
A) neutrons B) electrons C) protons D) nucleus
A) color B) reactivity C) flammability D) pH
A) pH B) texture C) density D) shape
A) burning B) adding dye C) breaking D) crushing
A) precipitate forming B) burning C) breaking D) rusting
A) can only be observed by changing the substance B) only can be seen in a few elements C) vary within the same element D) can be observed with senses
A) vary within the same element B) can be observes with the senses C) cn only be observed by changing the substance 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) second B) meters C) liters D) kelvin
A) hours B) meters C) kilograms D) grams
A) accurate B) nethier accurate or precise C) precise D) both accurate and precise
A) 1/100 B) 1,000 C) 100 D) 1/1,000
A) control B) independent C) constant D) dependent
A) growth B) length of study C) fertilizer D) strawberries
A) 2,500m B) 0.0025m
A) 16.5g B) 1.65g
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) constant B) dependent C) control D) independent
A) stirring rod B) tongs C) graduated cylinder D) beaker
A) 10 B) 13 C) 16 D) 0
A) 17 B) 19 C) 18 D) 35
A) 10 B) 12 C) 26 D) 14
A) 18 B) 2 C) 8 D) 10
A) 0.57 amu B) 57 amu C) 115 amu D) 5.7 amu
A) 4 B) 1 C) 3 D) 2
A) 0.5 mol B) 89.6 mol C) 2 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) 6.75kg B) 33.3kg
A) Dalton B) Bohr C) Rutherford D) Thomson
A) Thomson B) Chadwick C) Democritus D) Rutherford
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) Rutherford B) Bohr C) Dalton D) Chadwick
A) The mass of electrons is much smaller than the mass of protons and neutrons. B) Electron number never changes. C) The mass of protons and neutrons are much smaller than the mass of the electron. D) Electrons are positively charged.
A) negative charge B) positive charge C) larger mass D) smaller mass
A) electrons B) positrons C) protons D) neutrons
A) 1.33g/ml B) 72g/ml C) 0.33g/ml D) 3g/ml
A) 17.5g B) 16g C) 0.094g D) 10.7g |