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