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What does the Roman numeral above the group tell us about the structure of the atom?
If you are referring to GROUP NUMBER when you say "Roman numeral above the group", it tells you the number of valence electrons, or the number of outermost electrons, with transition metals being the exception. For group number XII - XVIII the number of valence electrons is the group number minus 10 (minus 10 for the 10 transition groups).
Why is a roman numeral need in the names of compounds containing the elements tin copper lead?
The charges of the three are not a given value. They do not follow the charge patters of the Alkali/Alkali earth/ and other non metals have. Therefore, to know the charge, it must be given as a roman numeral in paranthesis () between the elements.
How can you tell which elements are metals and non metals?
Most elements on the table are metals. However, the nonmetals are located on the right side of the table. You need to start with a color-coded periodic table; this will show you metals,nonmetals, and metalloids.
How do you identify if a substance is metal matalloid or non metal?
In simple terms just by looking at them, and doing an electrical conductivity test you can tell the following. the metals are shiny and conduct electricity. The non-metals which are gases or liquids are easy to distinguish. The solid non metals such as sulfur are not shiny and do not conduct electricity. (graphite conducts electricity but is soft and not that shiny). The metalloids look a bit like metals but are very poor conductors of electricity.
What can you tell about an atom that has high electronegativity?
For metals high electronegativity mean low reactivity; for halogens, C, O, N, S, etc. the meaning is high reactivity.
What does the roman numeral tell about an element?
Roman numerals are used to identify the oxidation state of transition metals with more than one possible oxidation state.
What does the Roman numeral above the group tell us about the structure of the atom?
If you are referring to GROUP NUMBER when you say "Roman numeral above the group", it tells you the number of valence electrons, or the number of outermost electrons, with transition metals being the exception. For group number XII - XVIII the number of valence electrons is the group number minus 10 (minus 10 for the 10 transition groups).
What does roman numeral tell you in an ionic bond?
The Roman numeral tells you the number of electrons a polyvalent cation (usually a transition metal) gives up to participate in the ionic bond. Example: "Iron (III) oxide" means the iron is giving up 3 electrons to form the compound Fe2O3.
Tell you the number 100 in roman numeral?
C
How can you tell if iron is an element?
You can tell it is an element as it is on the periodic table, as Fe, in the transition metals block.
What is the overall charge of metals?
Most transition metals vary in their charges. For example, Iron (Fe) can have charges on 2+ or 3+. However, their are four transition metals that form ions with only one charge Ag-+1, Zn-+2, Cd-+2, and Al-+3
Which metals are transition?
All the transition state metals can be found in the clearly marked central portion of the Periodic Table of elements, but I will tell you that most of the well-known metals, such as iron, copper, gold, lead, zinc, nickel, chromium, platinum, etc., are transition state elements. The only really well known metal that is not a transition state element is aluminum. Other metals such as calcium or sodium are also not transition state elements, but they are not often encountered in their metallic form, they are encountered in compounds such as salt. Metals that we encounter in metallic form are almost always transition state elements.
Do the transition metals form cations or anions?
''Cations'' breh. Transition metals often form ions wihout complete octets that's why all the stable ions are all cations You can also tell that they form cations because some of the trans metals form colored compounds and give off light. Light is only given off by cations, not anions.
In Iron III sulfate what does the roman numeral tell us?
That the charge of iron is +3 resulting in a formula of Fe2(SO4)3
What ions do transitional metals form?
All metals, whether they belong to the transition state or not, will form only positive ions. There are a few metals which are extremely hard to ionize, however, those being the noble metals such as gold and platinum. But if you do manage to ionize them, the ions are positive.
Why is a roman numeral need in the names of compounds containing the elements tin copper lead?
The charges of the three are not a given value. They do not follow the charge patters of the Alkali/Alkali earth/ and other non metals have. Therefore, to know the charge, it must be given as a roman numeral in paranthesis () between the elements.
Which elements are transition metals?
All the transition state metals can be found in the clearly marked central portion of the periodic table of elements, but I will tell you that most of the well-known metals, such as iron, copper, gold, lead, zinc, nickel, chromium, platinum, etc., are transition state elements. The only really well known metal that is not a transition state element is aluminum. Other metals such as calcium or sodium are also not transition state elements, but they are not often encountered in their metallic form, they are encountered in compounds such as salt. Metals that we encounter in metallic form are almost always transition state elements.
