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