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