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