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