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