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Across the periodic table the properties of elements become WHAT?
Wiki User
∙ 12y ago
across a Periodic Table, the properties of elements become less metallic and more nonmetallic
Wiki User
∙ 12y ago
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When did the periodic table start getting used?
The periodic table of elements was first created by Dimitri Mendeleev in 1869. However, it took several years for his version to gain widespread acceptance and use. Since then, the periodic table has become an essential tool in chemistry and has undergone many revisions and refinements.
Do element become more metallic across each period?
No, elements become less metallic across periods. Periods are horizontal rows within the periodic table, and read left to right. The far right elements are called non-metals, and the far left elements are called metals. In between these two groups are a few metalloids - elements that have characteristics of both metals and non-metals. A period looks like this: Metals --> Metalloid --> Non-metals
When did cobalt become an element of the periodic table of the elements?
Cobalt has always been an element.
Why is it easier for group 14 elements in the periodic table to become stable instead of transferring electrons?
Group-14 elements do not transfer electrons. They share electrons to form covalent bonds.
What is the atomic number in a periodic table?
a table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns.
How do the properties of each family of metals change as you move across the periodic table?
They become less reactive.
What two elements in the periodic table have similar properties?
element in a group exibhit more or less same properties some of them have more things and some have less as they are dependent on the valency in the outermst shell of the elctrons so that they acn become reactive ,metal non metals etc
What characteristics is shared by elements in the same period?
Elements in the same period have the same number of electron shells, moving across a period (progressing group to group), elements gain electrons and protons and become less metallic. This arrangement reflects the periodic recurrence of similar properties as the atomic number increases.
When did the periodic table start getting used?
The periodic table of elements was first created by Dimitri Mendeleev in 1869. However, it took several years for his version to gain widespread acceptance and use. Since then, the periodic table has become an essential tool in chemistry and has undergone many revisions and refinements.
How do periodic trends illustrate stability and change in chemistry?
Periodic trends illustrate how some elements are very reactive while others are stable.
What predicts an element's properties?
The answer you are probably looking for is the periodic table, which arranges the elements. The periodic table can help predict properties of an element based on the element's location. All the elements in a veritcle collum (also known as family or group) will have the same number of valence electrons and thus behave in a similar manner. Elements can also be compared to one another on the horizontal axis(the period). i.e. moving from left to right elements become less metalic and do not exibit metallic properties as stongly. General location on the table can tell you what type of element it is; metal, nonmetal, metalloid/semimetal. or the # of protons and electrons in the element, the atomic mass.
What happens to the reactivity of elements in groups as the atomic numbers increase across a period?
they become more reactive since you are moving from left to right on the Periodic Table, the elements in group 17 are the most reactive.
What happens to reactivity of elements in groups labeled a as atomic numbers increase across a period?
they become more reactive since you are moving from left to right on the Periodic Table, the elements in group 17 are the most reactive.
What happens to the reactivity of elements in a group labeled A as atomic numbers increase across period?
they become more reactive since you are moving from left to right on the periodic table, the elements in group 17 are the most reactive.
How does reactivity of elements change across the periodic table?
this is called periodicity, the chemical properties of elements as you go across a period. The reactivity would be very great at first, especially if you are only crossing main group elements, and then would become less reactive, then very reactive again, and then one group over they would be completely inert
How do elements in group 1 of the periodic table become more stable?
They lose it
As you move from left to right on the periodic table the oxides of elements become more what?
They become more stable.
