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How can you predict which elements are reactive under normel conditions and which are unreactive?
Wiki User
∙ 11y ago
because of the heat and the effect
Myra Hodkiewicz
Wiki User
∙ 13y ago- You can tell when they are stable because it depends n the number and arrangement of electrons in their atoms. An atom is chemically stable when its outermost energy level is filled. Most atoms are not stable in their natural stat. Thus, they tend to react, or combine with other atoms, in ways that make the atoms more stable.
Wiki User
∙ 11y agoThe elements with either highest or lowest electronegativities are the most reactive, especially with one another. Elements with mid range electronegativity are less reactive, except for silicon and, especially, carbon, atoms of which can react readily with themselves.
Wiki User
∙ 8y agoThose with complete electron shells are stable.
Wiki User
∙ 11y agoPractically by experiments; some properties can be evaluated, but not so exact, by comparison, taking into account the atomic structure or many methods of calculus.
Wiki User
∙ 15y agobecause of the heat and the effect
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Why is the arrangement of electrons in an element key to understanding why each element behaves the way it does?
The elements in the periodic table are arranged based on how reactive they are, which is based on how many electrons they have in their outer shell. For example, the elements on the ends are very reactive because on one side the elements have seven electrons and on the other the elements have one. The elements with one electron are trying to get rid of their electron whereas the elements with seven electrons are trying to find another to make their shell complete, as there are eight electrons in the outer shell of an electron shell.
How do you predict if a covalent compound will be polar or nonpolar based on the elements' positions on the periodic table?
Yes
How could Mendeleevs table be used to predict the properties of elements that had not been discovered?
Comparing the properties of the new element with the properties of the other elements in the group we can make this prediction.
What did Dmitri Mendeleev find when he organized the elements by mass?
I believe the correct answer is he was able to predict the existence of yet undiscovered elements, due to the gaps. For instance, I believe germanium was one of the elements undiscovered in the table, its placeholder was called ekasilicon.
Predict the formula and name of a binary compound formed from the elements with the symbols B and O?
Boron trioxide
Predict that state of matter and the chemical reactivity of krypton?
Based on the other elements in the same group, like helium and neon, you can predict that it is a gas under normal conditions, and it is not chemically reactive.
What can you predict from an elements place in th periodic table?
its valence electrons, its number of energy levels, how reactive it is, and some properties it has
What can you predict about the properties of xenon and helium?
Helium and Xenon are both Noble(or inert) gases. They are very unreactive. Helium has no known compounds and exists only in its atomic state. Xenon can be forced to react with extremely reactive compounds like Fluorine to form XeF4 . But this reaction is extremely hard, because Xenon is so unreactive. They are both gases with very low boiling temperatures.
What can the reactivity series be used to predict?
It can predict many things e.g. displacement reactions such as copper sulfate + Calcium → Calcium sulfate + Copper as the copper would've been displaced because calcium is more reactive, it also can predict how long it takes for a metal to corrode rust e.g. Gold is used for jewellery because it's shiny and beautiful and it has a very low reactivity. This means that many unreactive metals cost a lot. It can also predict many other things.
What can you use the Periodic Table of Elements for to predict about the elements?
An element's physical and chemical properties. You can also predict what elements will bond with each other.
What does a periodic table predict?
A periodic table can predict elements that are not yet confirmed or identified.
Was Mendeleev's periodic table accurate enough that he was able to use it to predict the existence and several properties of certain elements that had not yet been discovered?
Mendeleev was able to predict the properties of the elements that were not discovered at that time. He left gaps for these elements in his Periodic Table.
How do you predict an elements group?
they have same numbers of electrons.
Why is the arrangement of electrons in an element key to understanding why each element behaves the way it does?
The elements in the periodic table are arranged based on how reactive they are, which is based on how many electrons they have in their outer shell. For example, the elements on the ends are very reactive because on one side the elements have seven electrons and on the other the elements have one. The elements with one electron are trying to get rid of their electron whereas the elements with seven electrons are trying to find another to make their shell complete, as there are eight electrons in the outer shell of an electron shell.
How did many elements did Mendeleev predict would be discovered?
3
The activity series helps predict the products of what kind of reactions?
Single-replacement
Who arrange the elements according to atomic mass and use the arrangement to predict the properties of missing elements?
Dmitri Mendeleev
