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