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) - C) 0
A) have an equal number of charged and noncharged particles. B) have an equal number of electrons and protons. C) have neutrons in their nuclei. D) have an equal number of neutrons and protons.
A) cooking eggs B) burning wood C) digesting food D) breaking a pencil
A) Discovery Date B) Atomic Number C) Alphabetical Order D) Atomic Mass
A) Valence Electrons B) Neutrons C) Protons and Neutrons D) Protons
A) color B) shape C) pH D) density
A) a total of eight neutrons and electrons. B) eight protons in its nucleus. C) a total of eight protons and neutrons. D) eight neutrons in its nucleus.
A) protons plus the number of neutrons. B) protons plus the number of electrons. C) neutrons. D) protons.
A) They form negative ions with a -1 charge. B) They are located in the left-most column of the periodic table. C) They are extremely nonreactive. D) They are usually gases.
A) They are highly reactive with both metals and nonmetals. B) They form compounds with very bright colors. C) a basically nonreactive. D) They are extremely rare in nature.
A) exist in all three states of matter in normal conditions B) have only 1 valence electron C) are all metals D) are nonreactive
A) On the left-most side. B) In the middle column of the periodic table. C) In the bottom rows. D) On the right side.
A) color; smell B) number; mass C) mass;number D) location; ionization
A) 12 neutrons B) 6 neutrons C) 8 neutrons D) 3 neutrons
A) Halogens B) Alkaline Earth C) Noble Gases D) Alkali Metals
A) Noble Gases B) Akali C) Halogens D) Alkaline Earth
A) Alkali B) Halogens C) Noble Gases D) Alkaline Earth
A) Noble Gases B) Alkaline Earth C) Halogens D) Alkali
A) 5 B) 2 C) 3 D) 4
A) metalloids B) metals C) nonmetals
A) Mendleev B) Einstein C) Mosely D) Ms. Watson
A) According to atomic mass B) by date discovered C) alphabetically D) according to atomic number
A) Atomic Number-Atomic Mass B) Atomic Number C) Atomic Mass D) Atomic Mass-Atomic Number
A) Atomic Number B) Atomic Mass-Atomic Number C) Atomic Mass D) Atomic Number-Atomic mass
A) neutrons B) nucleus C) protons D) electrons
A) reactivity B) flammability C) color D) pH
A) adding dye B) crushing C) breaking D) burning
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) can be observes with the senses B) vary within the same element C) only can be observed in a few elements D) cn only be observed by changing the substance
A) physical B) chemical
A) chemical B) physical
A) it will float B) it will sink C) not enough information
A) hours B) meters C) kilograms D) grams
A) accurate B) both accurate and precise C) precise D) nethier accurate or precise
A) 1/1,000 B) 1,000 C) 100 D) 1/100
A) control B) dependent C) constant D) independent
A) fertilizer B) growth C) strawberries D) length of study
A) independent B) constant C) dependent D) control
A) stirring rod B) tongs C) graduated cylinder D) beaker
A) 16 B) 13 C) 10 D) 0
A) 18 B) 17 C) 35 D) 19
A) 12 B) 26 C) 10 D) 14
A) 18 B) 2 C) 10 D) 8
A) 0.57 amu B) 57 amu C) 5.7 amu D) 115 amu
A) 1 B) 2 C) 3 D) 4
A) Dalton B) Rutherford C) Bohr D) Thomson
A) Rutherford B) Thomson C) Democritus D) Chadwick
A) Rutherford B) Bohr C) Thomson D) Shrodinger and Heisenburg
A) Bohr B) Dalton C) Rutherford D) Thomson
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) Bohr B) Chadwick C) Rutherford D) Dalton
A) The mass of electrons is much smaller than the mass of protons and neutrons. B) Electrons are positively charged. C) Electron number never changes. D) The mass of protons and neutrons are much smaller than the mass of the electron.
A) larger mass B) smaller mass C) positive charge D) negative charge
A) neutrons B) protons C) electrons D) positrons
A) 3g/ml B) 72g/ml C) 1.33g/ml D) 0.33g/ml
A) 10.7g B) 24g C) 17.5g D) 0.094g |