A) They have empty outer energy levels. B) None of these. C) They have seven electrons in the outer energy levels. D) Their outer energy levels are completely filled with electrons. E) They have no electrons.
A) lithium chlorate B) lithium chloride C) None of these. D) chlorine lithium E) chlorine lithiate
A) it will have a negative charge B) it will remain neutral because electrons do not affect the charge C) it’s weight will increase D) it will have a positive charge
A) Ionic, Magnesium chloride B) Covalent, Manganese chloride C) Covalent, Magnesium chloride D) Ionic, Magneside chlorine
A) NNa3 B) Na7N11 C) NaN3 D) Na3N
A) Sulfur B) Lead C) Oxygen D) Neon
A) MgO B) Mg2O C) MgO2 D) Mg2O2
A) an atom that has an different number of protons and electrons. B) an atom with an different number of protons and neutrons C) an atom with more neutrons than electrons D) None of these. E) an atom with more electrons than neutrons
A) 0:0 B) 1:2 C) 1:1 D) 2:1
A) N3O B) NO C) NOH D) N2O5
A) 79 B) 2 C) 160 D) 81
A) Iodine flourine B) Iodine heptaflouride C) Iodide flouride D) Hydroiodide flourine E) if
A) protons = 12.011 and valence electrons = 6 B) protons = 6 and valence elctrons = 4 C) protons = 6 and valence electrons = 6 D) protons = 6 and valence electrons = 12.011
A) NaSO8 B) NaSO4 C) Na2SO4 D) Na(SO4)_2
A) Benzene B) Argon C) Chrlorine D) None of these. E) Flourine
A) 2 B) None of these. C) 4 D) 8 E) 6
A) both ionic and covalent B) None of these. C) covalent D) ionic E) neither ionic nor covalent
A) actinides B) halogens C) transition elements D) alkaline earth metals E) bactinides
A) sodium dichloride B) sodium chloride C) None of these. D) sodium chlorate E) chlorine sodiate
A) metals B) metalloids C) radioactive D) None of these. E) isotopes
A) Na K Ca B) C N O C) Mg Ca Sr D) Z Ia Y E) K Ca Sc
A) None of these. B) 26 C) 56 D) 52 E) 30
A) AlS B) Al2S2 C) Al13S16 D) None of these. E) Al2S3
A) ionic B) binary C) triinary D) metallic E) covalent
A) MgNO3 B) Mg2(NO3)_2 C) Mg2NO3 D) Mg(NO3)_2 E) None of these.
A) Na + Cl2 -> Na2Cl2 B) Na + 2Cl2 -> NaCl C) None of these. D) Na + Cl2 -> NaCl2 E) 2Na + Cl2 -> NaCl
A) 2FeO + C -> 2Fe + CO2 B) The equation is already balanced. C) FeO + C -> Fe + CO2 D) FeO + C -> 3F3 + CO E) FeO + C -> 2Fe + CO2
A) None of these. B) the hydrogen and then the oxygen and then the metals C) the metals, then the non-metals (except H and O) and then balance the H and then balance the O D) the non-metals and then the metals E) the O and H and then everything else
A) Oxygen B) Carbon C) Magnesium D) Argon E) Rubidium
A) 12p 12e 12n B) None of these C) 11p 12e 11n D) 12p 11e 11n E) 11p 11e 12n |