1



																Introduction

																	Silver (Ag)



						Silver is White, Malleable metal, It is dissolves in Nitric acid, Date of Discovery: Known to the ancients, Discoverer: Unknown Uses: jewelry, photography, electrical conductor.

				Silver does not react with clean water.

													Atomic number
																																																																														Density, g/mL
																																																																																																																			10																		.5
																																																			47


							Atomic weight, u

																																																																			.868

																																																			107
																																																																															Melting point, K
																																																																																																																				1234

										Bonding radius, A


																																																																				.34
																																																																																																																				2436
																																																			1

																																																																																	Boiling point, K
									Atomic radius, A



																																																																				.75																																																	250
																																																			1
																																																																																																																																					.58

																																																																													Heat of vaporization, kJ/mol
								Ionization Potential, V



																																																																				.576																																																	11

																																																			7
																																																																																																																																					.3
																																																																														Heat of fusion, kJ/mol
								Electronegativity



																																																																				.93																																																	0
																																																			1
																																																																																																																																					.235

																																																																																Specific heat, J/gK
								The oxide is amphoteric.





																																																																Crystal are face centered cubic.
								Mercury (Hg)


					Famous for its toxic properties and it's physical state, mercury is a liquid heavy metal. It is used in the laboratory thermometers, manometers and barometers encountered in all of our chemistry classes, Color: Silver, Uses: thermometers, barometers, fluorescent lamps, batteries

		Mercury is solution in normal temperature degree; non-influence by dilutes acids, except nitric acid. It is forming two Ionic:

		1-Mercurous, monovalence.

			2-Mercuric, divalence.

												Atomic number																																				-						80																										Density
																																																																																																														G/mL																13
																																																																																																																																							.53


																																																																Melting point

												Atomic weight																																			U							200																			.59

																																																																																																																K											234
																																																																																																																									.28

																																																																			Boiling point

												Bonding radius																																			A							1																				.49
																																																																																																																			K

																																																																																																																														630



																																																																Heat of vaporization
												Atomic radius

																																															A							1																											.76
																																																																																																										kJ/mol
																																																																																																																											59
																																																																																																																																				.229


																																																																			Heat of fusion

												Ionization Potential

																																															V							10																								.437																																					kJ/mol

																																																																																																															2																									.295



											Electronegativity																																																																					Specific heat

																																																-						2																																																																		J/gK
																																																																																																																																						0										.139


											The oxide is mildly basic.																																																																					Crystal is rhombohedral.


												Lead (Pb)



									A toxic heavy metal. Its malleability has been lead's greatest virtue as it has been used since ancient times for containers and water pipes. Our students investigate the density, reactivity and electrochemistry of lead. Date of Discovery: Known to the ancients Discoverer: Unknown Uses: solder and shielding against radiation, batteries

								It is a bluish-green metal, it is readily dissolved by dilute nitric a cid easily and dissolved in HCL slowly.

														Atomic number																												-							82																						Density																											G/mL								11																.4


														Atomic weight																											u								207															.2							Melting point																													K						600																.6

														Bonding radius																										A									1															.47							Boiling point																													K						2023

														Atomic radius																										A									1															.81							Heat of vaporization																									kJ/mol										177																.7

														Ionization Potential																										V									7															.416							Heat of fusion																									kJ/mol

																																																																Step 2
																																																																									Lesson

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