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