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