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