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