A) 51 B) 23 C) 50 D) 60
A) 1 B) 7 C) 3 D) 17
A) 45 B) 9 C) 103 D) 5
A) 15 B) 4 C) 3 D) 33
A) Transition Metals B) Alkali Metals C) Halogens D) Noble Gases E) Alkaline Earth Metals
A) 14.007 B) 7 C) 2 D) 14
A) 6 B) 56 C) 2 D) 137
A) 6 B) 2 C) 1 D) 7
A) Tellurium is a solid metalloid. B) Phosphorus is a non-metal gas. C) Mercury is a solid metal. D) Chlorine is a liquid non-metal.
A) 96 B) 42 C) 5 D) 6
A) 4 B) 3 C) 2 D) 7
A) proton/+, electron/neutral, neutron/- B) proton/+, neutron/-, electron/no charge C) proton/+, electron/-, neutron/uncharged D) proton/-, electron/+, neutron/no charge
A) protons and neutrons B) protons and orbits C) neutrons and electrons D) protons and electrons
A) Phosphorus and Silicon B) Mercury and Thallium C) Carbon and Boron D) Argon and Krypton
A) electrons orbit totally randomly around the nucleus B) atoms are tiny solid spheres C) the atom is mostly empty space D) the atom is a positively charged sphere with electrons embedded in it
A) nucleus B) group C) region D) period
A) Lithium B) Chlorine C) Beryllium D) Magnesium
A) number of neutrons B) number of protons C) period number D) group number
A) the mass number minus the atomic number B) the same as the number of energy levels C) greater than the mass number D) the same as the number of electrons
A) Group Number B) State of Matter C) Number of Neutrons D) Period Number
A) Manganese B) Carbon C) Nitrogen D) Francium
A) Yes, some Carbon atoms have 6 protons, some have 7 protons. B) No, every single Carbon atom has exactly 6 protons. An atom's atomic number gives it its identity.
A) by adding electrons B) By adding or losing electrons C) by losing protons D) by adding protons
A) by losing protons B) by losing electrons C) by adding protons D) by adding electrons
A) by losing electrons B) by losing protons C) by adding protons D) by adding electrons
A) by adding protons B) by adding electrons C) by adding neutrons D) by adding or losing neutrons
A) mass number divided by 2 B) same as the mass number C) difference between the atomic and mass number D) same as the atomic number
A) the same as the atomic number B) the difference between the mass and atomic number C) the same as the mass number D) the same as the number of neutrons
A) Na and Li B) Hg and C C) Mg and F D) B and O
A) Mg and Cl B) F and At C) Ba and Ra D) Li and Po
A) The halogens B) The alkali earth metals C) The noble gases D) The transition metals E) The alkali metals
A) The noble gases B) The halogens C) The alkali metals D) The transition metals
A) 18 B) 17 C) 4 D) 8 E) 1
A) how many electrons there are B) how many protons there are C) how many electron levels there are D) how reactive they are
A) the number of neutrons B) the number of protons C) how many valence electrons the atom has D) how many electrons the atom has
A) Sodium B) Silver C) Iron D) Fluorine E) Mercury
A) F B) Au C) Li D) Al E) H
A) Cs B) Al C) I D) Mg E) Li
A) the number of electrons B) the number of protons C) the number of neutrons
A) Mendeleev B) Dalton C) Lewis D) Newton E) Bohr |