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The element argon is the last element in its period What does this tell you about?
Since argon is the last element in its period, it is a noble gas. This means that it has a full outer shell of electrons (specifically a full p orbital), and is not very reactive (at all).
Is silver sulfide ionic or molecular?
Ionic, since it has silver (metal) and Sulfur (nonmetal).
Is magnesium oxide a metal or non metal?
magnesium is neather a metal nor a non metal. instead it was discovered on the moon in 1899 on the first space walk. since then it has been used to build flame resistant bridges and the 2010 aero sun probe.
How can you tell if an element is more metallic than another?
the more metallic element will be the one below in group # or the one closer to the left in the period( the more metallic will be the one closer to the bottom left corner) since they have the lowest ionization energy and lower electronegativity
What element is in period 5 and is a transition element and has 51 neutrons?
The isotope of zirconim, 91Zr, has 51 neutrons. In order to solve this problem, one must know that an element's atomic weight is the average of its number of protons and neutrons (only neutrons are variable). Since the atomic number is the number of protons, the atomic number subtracted from the atomic weight gives the number of neutrons. An element in period 5 that has this many neutrons is found to be zirconium (the isotope 91Zr).
The element argon is the last element in its period What does this tell you about?
Since argon is the last element in its period, it is a noble gas. This means that it has a full outer shell of electrons (specifically a full p orbital), and is not very reactive (at all).
Is oxygen a metal metalloid or a nonmetal?
Oxygen is nonmetal because since oxygen isn't visable it's not solid so oxygen is nonmetal.
What are the kinds of nonmetal atoms?
Any element that is not a metal is, by definition, a nonmetal. These come in basically two types, the chemically active nonmetal and the inert nonmetal. Sulfur, oxygen, nitrogen, carbon, silicon, phosphorus, and the halogens, fluorine, chlorine, bromine, iodine, and astatine, are the most important of the chemically active nonmetals; hydrogen is an ambiguous element since it can be either a metal or a nonmetal, although it is usually a nonmetal (note that at low temperature and high pressure, hydrogen actually will become a metallic solid, with all the usual features of a metal, even though under more usual temperatures and pressures it is a transparent gas bearing no resemblance to a metal). The inert nonmetals are the noble gases, helium, neon, krypton, xenon, and radon.
How do you use for and since?
You use for when talking about a period of time.I have known him for 5 years.You use since when talking a bout a point in time.I have known him since 1999.
What kind of charge will nonmetal possess when it gains electron?
Since electrons are negatively charged, a nonmetal which gains an electron will also become negatively charged.
The elements cesium Barium and lutetium appear from left to right in Period 6 of the periodic table Among these elements the most reactive is?
Barium, since lutetium is also a metal. (At the next-to-rightmost column of this period is iodine, which may be as reactive as barium but is a nonmetal.)
Which element was once called argentum?
The element that was once called Argentum is Silver. It came from the Latin Argentum, meaning silver. It has been known since prehistoric time.
Who found the element lead?
It was known since prehistoric times- and like Gold, is mentioned in the Bible as a synonym for heaviness.
Is silver sulfide ionic or molecular?
Ionic, since it has silver (metal) and Sulfur (nonmetal).
What time was Mercury found?
Both the planet Mercury and the substance (element) mercury have been known since ancient times. When either was first noticed is not known.
Is magnesium oxide a metal or non metal?
magnesium is neather a metal nor a non metal. instead it was discovered on the moon in 1899 on the first space walk. since then it has been used to build flame resistant bridges and the 2010 aero sun probe.
Who discovererd the element gold?
Gold has been known since ancient times and therefore nobody knows who first discovered it.
