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