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