A) It is composed of electrons and neutrons B) It is composed of protons and electrons C) It is composed of protons only D) It is composed of protons and neutrons
A) 0 B) + C) -
A) have an equal number of electrons and protons. B) have an equal number of charged and noncharged particles. C) have an equal number of neutrons and protons. D) have neutrons in their nuclei.
A) cooking eggs B) burning wood C) digesting food D) breaking a pencil
A) Discovery Date B) Atomic Mass C) Atomic Number D) Alphabetical Order
A) Protons B) Protons and Neutrons C) Neutrons D) Valence Electrons
A) density B) pH C) shape D) color
A) eight protons in its nucleus. B) a total of eight neutrons and electrons. C) a total of eight protons and neutrons. D) eight neutrons in its nucleus.
A) protons plus the number of neutrons. B) protons. C) protons plus the number of electrons. D) neutrons.
A) They are located in the left-most column of the periodic table. B) They form negative ions with a -1 charge. C) They are extremely nonreactive. D) They are usually gases.
A) They form compounds with very bright colors. B) They are extremely rare in nature. C) They are highly reactive with both metals and nonmetals. D) a basically nonreactive.
A) are nonreactive B) have only 1 valence electron C) exist in all three states of matter in normal conditions D) are all metals
A) In the middle column of the periodic table. B) On the right side. C) On the left-most side. D) In the bottom rows.
A) location; ionization B) number; mass C) mass;number D) color; smell
A) 6 neutrons B) 12 neutrons C) 3 neutrons D) 8 neutrons
A) Alkali Metals B) Alkaline Earth C) Noble Gases D) Halogens
A) Halogens B) Noble Gases C) Alkaline Earth D) Akali
A) Noble Gases B) Alkali C) Halogens D) Alkaline Earth
A) Alkaline Earth B) Noble Gases C) Alkali D) Halogens
A) 2 B) 5 C) 4 D) 3
A) metals B) metalloids C) nonmetals
A) Ms. Watson B) Mendleev C) Einstein D) Mosely
A) According to atomic mass B) according to atomic number C) by date discovered D) alphabetically
A) Atomic Number B) Atomic Mass-Atomic Number C) Atomic Number-Atomic Mass D) Atomic Mass
A) Atomic Mass-Atomic Number B) Atomic Number C) Atomic Mass D) Atomic Number-Atomic mass
A) electrons B) nucleus C) neutrons D) protons
A) reactivity B) flammability C) color D) pH
A) adding dye B) crushing C) breaking D) burning
A) only can be seen in a few elements B) can be observed with senses C) can only be observed by changing the substance D) vary within the same element
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) chemical B) physical
A) physical B) chemical
A) it will sink B) it will float C) not enough information
A) grams B) kilograms C) meters D) hours
A) accurate B) both accurate and precise C) precise D) nethier accurate or precise
A) 1/100 B) 1,000 C) 1/1,000 D) 100
A) independent B) constant C) control D) dependent
A) growth B) strawberries C) fertilizer D) length of study
A) independent B) constant C) control D) dependent
A) beaker B) tongs C) stirring rod D) graduated cylinder
A) 10 B) 16 C) 0 D) 13
A) 19 B) 35 C) 18 D) 17
A) 26 B) 14 C) 10 D) 12
A) 18 B) 2 C) 10 D) 8
A) 5.7 amu B) 0.57 amu C) 115 amu D) 57 amu
A) 3 B) 1 C) 4 D) 2
A) Dalton B) Thomson C) Rutherford D) Bohr
A) Thomson B) Chadwick C) Democritus D) Rutherford
A) Bohr B) Thomson C) Shrodinger and Heisenburg D) Rutherford
A) Bohr B) Thomson C) Dalton D) Rutherford
A) Atoms of the same element are exactly alike. B) All matter is made of atoms. C) Atoms combine to form compounds in simple whole number ratios.
A) Bohr B) Chadwick C) Dalton D) Rutherford
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) larger mass B) positive charge C) negative charge D) smaller mass
A) electrons B) positrons C) neutrons D) protons
A) 72g/ml B) 1.33g/ml C) 3g/ml D) 0.33g/ml
A) 10.7g B) 24g C) 17.5g D) 0.094g |