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