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