A) They have empty outer energy levels. B) They have seven electrons in the outer energy levels. C) Their outer energy levels are completely filled with electrons. D) They have no electrons. E) None of these.
A) lithium chloride B) None of these. C) chlorine lithiate D) chlorine lithium E) lithium chlorate
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) Ionic, Magnesium chloride B) Covalent, Manganese chloride C) Ionic, Magneside chlorine D) Covalent, Magnesium chloride
A) Na3N B) NNa3 C) Na7N11 D) NaN3
A) Sulfur B) Oxygen C) Lead D) Neon
A) Mg2O B) Mg2O2 C) MgO2 D) MgO
A) an atom with an different number of protons and neutrons B) None of these. C) an atom with more electrons than neutrons D) an atom with more neutrons than electrons E) an atom that has an different number of protons and electrons.
A) 1:2 B) 2:1 C) 0:0 D) 1:1
A) N2O5 B) NO C) NOH D) N3O
A) 79 B) 81 C) 2 D) 160
A) Hydroiodide flourine B) Iodine flourine C) Iodine heptaflouride D) Iodide flouride E) if
A) protons = 12.011 and valence electrons = 6 B) protons = 6 and valence electrons = 12.011 C) protons = 6 and valence electrons = 6 D) protons = 6 and valence elctrons = 4
A) NaSO8 B) Na2SO4 C) NaSO4 D) Na(SO4)_2
A) Chrlorine B) None of these. C) Flourine D) Benzene E) Argon
A) 8 B) 6 C) 2 D) 4 E) None of these.
A) ionic B) neither ionic nor covalent C) covalent D) None of these. E) both ionic and covalent
A) halogens B) alkaline earth metals C) actinides D) bactinides E) transition elements
A) None of these. B) sodium chloride C) sodium chlorate D) chlorine sodiate E) sodium dichloride
A) metalloids B) None of these. C) radioactive D) isotopes E) metals
A) K Ca Sc B) Na K Ca C) C N O D) Mg Ca Sr E) Z Ia Y
A) 26 B) 52 C) None of these. D) 30 E) 56
A) None of these. B) Al13S16 C) Al2S2 D) AlS E) Al2S3
A) metallic B) ionic C) covalent D) triinary E) binary
A) MgNO3 B) Mg2NO3 C) Mg2(NO3)_2 D) None of these. E) Mg(NO3)_2
A) Na + Cl2 -> Na2Cl2 B) None of these. C) Na + 2Cl2 -> NaCl D) Na + Cl2 -> NaCl2 E) 2Na + Cl2 -> NaCl
A) FeO + C -> 2Fe + CO2 B) FeO + C -> Fe + CO2 C) 2FeO + C -> 2Fe + CO2 D) FeO + C -> 3F3 + CO 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 O and H and then everything else C) None of these. D) the non-metals and then the metals E) the hydrogen and then the oxygen and then the metals
A) Rubidium B) Argon C) Oxygen D) Magnesium E) Carbon
A) 12p 11e 11n B) 11p 12e 11n C) None of these D) 12p 12e 12n E) 11p 11e 12n |