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