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