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