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