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 electrons and protons. D) have an equal number of charged and noncharged particles.
A) burning wood B) breaking a pencil C) cooking eggs D) digesting food
A) Atomic Number B) Atomic Mass C) Alphabetical Order D) Discovery Date
A) Protons and Neutrons B) Neutrons C) Valence Electrons D) Protons
A) pH B) density C) shape D) color
A) a total of eight protons and neutrons. B) a total of eight neutrons and electrons. C) eight neutrons in its nucleus. D) eight protons in its nucleus.
A) protons. B) protons plus the number of neutrons. C) neutrons. D) protons plus the number of electrons.
A) They are extremely nonreactive. B) They are located in the left-most column of the periodic table. C) They are usually gases. D) They form negative ions with a -1 charge.
A) They form compounds with very bright colors. B) They are highly reactive with both metals and nonmetals. C) a basically nonreactive. D) They are extremely rare in nature.
A) are nonreactive B) exist in all three states of matter in normal conditions C) have only 1 valence electron D) are all metals
A) In the middle column of the periodic table. B) On the left-most side. C) On the right side. D) In the bottom rows.
A) location; ionization B) color; smell C) number; mass D) mass;number
A) 8 neutrons B) 3 neutrons C) 12 neutrons D) 6 neutrons
A) Alkaline Earth B) Halogens C) Alkaline Metals D) Noble Gases
A) Halogens B) Alkaline Earth C) Noble Gases D) Akali
A) Alkali B) Halogens C) Noble Gases D) Alkaline Earth
A) Halogens B) Alkaline Earth C) Alkali D) Noble Gases
A) 5 B) 3 C) 2 D) 4
A) metalloids B) metals C) nonmetals
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 Mass B) Atomic Number C) Atomic Mass-Atomic Number D) Atomic Number-Atomic Mass
A) Atomic Mass B) Atomic Mass-Atomic Number C) Atomic Number D) Atomic Number-Atomic mass
A) electrons B) protons C) nucleus D) neutrons
A) pH B) color C) reactivity D) flammability
A) texture B) pH C) density D) shape
A) burning B) adding dye C) crushing D) breaking
A) rusting B) precipitate forming C) burning D) breaking
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) cn only be observed by changing the substance B) vary within the same element C) can be observes with the senses D) only can be observed in a few elements
A) chemical B) physical
A) chemical B) physical
A) not enough information B) it will sink C) it will float
A) kelvin B) second C) liters D) meters
A) hours B) grams C) kilograms D) meters
A) both accurate and precise B) nethier accurate or precise C) precise D) accurate
A) 1,000 B) 1/1,000 C) 100 D) 1/100
A) dependent B) independent C) constant D) control
A) growth B) length of study C) fertilizer D) strawberries
A) 0.0025m B) 2,500m
A) 1.65g B) 16.5g
A) 9.470x10-2 B) 9.470x102
A) 4.2x10-3 B) 4.2x103
A) 875,000 B) 0.0000875
A) 0.00634 B) 63,400
A) independent B) control C) dependent D) constant
A) stirring rod B) beaker C) tongs D) graduated cylinder
A) 0 B) 16 C) 10 D) 13
A) 18 B) 17 C) 35 D) 19
A) 14 B) 26 C) 10 D) 12
A) 18 B) 2 C) 8 D) 10
A) 115 amu B) 5.7 amu C) 0.57 amu D) 57 amu
A) 1 B) 3 C) 2 D) 4
A) 0.5 mol B) 89.6 mol C) 2 mol D) 67.2 mol
A) 21.07 atoms B) 5.8x1022 atoms C) 2.107x1024 atoms D) 1.72x1023 atoms
A) 12,144ft B) 2,295ft
A) 6.75kg B) 33.3kg
A) Bohr B) Thomson C) Dalton D) Rutherford
A) Democritus B) Rutherford C) Chadwick D) Thomson
A) Shrodinger and Heisenburg B) Rutherford C) Thomson D) Bohr
A) Bohr B) Rutherford C) Thomson D) Dalton
A) Atoms combine to form compounds in simple whole number ratios. B) All matter is made of atoms. C) Atoms of the same element are exactly alike.
A) Rutherford B) Bohr C) Chadwick D) Dalton
A) The mass of protons and neutrons are much smaller than the mass of the electron. B) The mass of electrons is much smaller than the mass of protons and neutrons. C) Electrons are positively charged. D) Electron number never changes.
A) negative charge B) positive charge C) smaller mass D) larger mass
A) neutrons B) protons C) electrons D) positrons
A) 72g/ml B) 3g/ml C) 1.33g/ml D) 0.33g/ml
A) 17.5g B) 16g C) 0.094g D) 10.7g |