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