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What are the seven metals of antiquity?
The seven metals of antiquity are gold, silver, copper, iron, tin, lead, and mercury. These metals were known and used in ancient civilizations for various purposes such as tools, weapons, jewelry, and coinage.
How many electrons on their outer shell does bromine have?
Seven , outer shell electrons or valence electrons increase as you move from left to right on the periodic table not including the transition metals which vary, they start with 1 valence in the alkali earth metals , and finish with 8 valence electrons on the noble gasses (group 18)
What element has a low melting point and boiling point exists as a diatomic molecule in the gas phase has seven valence electrons and readily reacts with metals to produce a salt?
The element that fits this description is chlorine (Cl). It is a diatomic gas at room temperature with a low melting and boiling point. It has seven valence electrons and readily reacts with metals to form ionic salts.
Why are alkali metals more reactive than transition metals?
Groups 3-12 do not have individual names. Instead, all of these groups are called transition metals. The atoms of transition metals do not give away their electrons as easily as atoms of the Group 1 and Group 2 metals do. So, transition metals are less reactive than alkali metals and alkaline-earth metals are.
How are valence electrons calculated?
You can look at the periodic table of the elements and determine the number of valence electrons in that element. The Alkali metals have one The Alkaline earth metals have two The Transition metals have one to three, it depends The Boron family have three The Carbon family have four The Nitrogen family have five The Oxygen family have six The Halogen family have seven The Noble gases have eight
How many non metals are there and the names?
There are seven non metals -Hydrogen -Carbon -Nitrogen -Oxygen -Phosphorus -Sulfur -Selenium
What are the seven metals of antiquity?
The seven metals of antiquity are gold, silver, copper, iron, tin, lead, and mercury. These metals were known and used in ancient civilizations for various purposes such as tools, weapons, jewelry, and coinage.
What are the seven categories of elements on the periodic table?
There are actually 10:Alkali MetalsAlkaline Earth MetalsLanthanidesActinidesTransition ElementsPoor MetalsMetalloidsNonmetalsHalogensNoble Gases
What term describes the reactive nonmetals that have seven valence electrons?
alkali earth metals
What is the group seven called in the periodic table?
Group 7 elements are examples of transition metals (or d-block elements)
How many gold metals did Michelle Kwan get so far?
Michelle kwan got her first medal when she was seven years old
What has the author Hassan A Aziz Abdalla written?
Hassan A. Aziz Abdalla has written: 'Extraction, adsorption and precipitation of seven metals from sea'
How many electrons on their outer shell does bromine have?
Seven , outer shell electrons or valence electrons increase as you move from left to right on the periodic table not including the transition metals which vary, they start with 1 valence in the alkali earth metals , and finish with 8 valence electrons on the noble gasses (group 18)
What are the chacteistics of metals?
what are the characteristics of metals? metals? non-metals?
What element has a low melting point and boiling point exists as a diatomic molecule in the gas phase has seven valence electrons and readily reacts with metals to produce a salt?
The element that fits this description is chlorine (Cl). It is a diatomic gas at room temperature with a low melting and boiling point. It has seven valence electrons and readily reacts with metals to form ionic salts.
Most elements are what?
metals
What is the History behind the copper chloride and aluminum lab?
Process Metallurgy is one of the oldest applied sciences. Its history can be traced back to 6000 BC. Admittedly, its form at that time was rudimentary, but, to gain a perspective in Process Metallurgy, it is worthwhile to spend a little time studying the initiation of mankind's association with metals. Currently there are 86 known metals. Before the 19th century only 24 of these metals had been discovered and, of these 24 metals, 12 were discovered in the 18th century. Therefore, from the discovery of the first metals - gold and copper until the end of the 17th century, some 7700 years, only 12 metals were known. Four of these metals, arsenic, antimony , zinc and bismuth , were discovered in the thirteenth and fourteenth centuries, while platinum was discovered in the 16th century. The other seven metals, known as the Metals of Antiquity, were the metals upon which civilization was based. These seven metals were:(1) Gold (ca) 6000BC(2) Copper,(ca) 4200BC(3) Silver,(ca) 4000BC(4) Lead, (ca) 3500BC(5) Tin, (ca) 1750BC(6) Iron,smelted, (ca) 1500BC(7) Mercury, (ca) 750BCThese metals were known to the Mesopotamians, Egyptians, Greeks and the Romans. Of the seven metals, five can be found in their native states, e.g., gold, silver, copper, iron (from meteors) and mercury. However, the occurrence of these metals was not abundant and the first two metals to be used widely were gold and copper. And, of course, the history of metals is closely linked to that of coins and gemstones
