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