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