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