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