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