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How does electronegative vary across a periodic?
The electro-negativity of elements increases as you move across a period.
How foes IE vary across a period?
it does
How can valency change across a period?
Valency, or the combining capacity of an element, can change across a period due to variations in the number of valence electrons. As you move from left to right across a period in the periodic table, elements typically gain more valence electrons, transitioning from metals to non-metals. This change influences their ability to form bonds, with metals often having low valency and non-metals having higher valency. Consequently, the types of chemical bonds and compounds that elements can form also vary across the period.
What conclusion can be drawn about the relationship between the arrangements of elements on the periodic table and the patterns observed in there properties?
The arrangement of elements on the periodic table reflects their atomic structure and properties, with elements grouped by similar chemical behaviors and characteristics. This organization reveals periodic trends, such as electronegativity, atomic radius, and ionization energy, which vary systematically across periods and groups. As you move from left to right, elements typically become less metallic and more non-metallic, with increasing electronegativity. Therefore, the periodic table serves as a valuable tool for predicting and understanding the chemical properties of elements based on their positions.
How does the atomic radius vary in a period?
Atomic radius decreases across a period from left to right, except for the noble gases.
How does the valency vary on moving down the group?
The valency does not (or tends not to) vary going up and down a group. It varies going across a period.
What is the difference3 between a family of elements and elements in the same period?
a family is a column of elements a period is a row of elements
How do physical properties differ as you move across a period or down a group?
Moving down a group, the elements will have the same number if valence electrons. Tis will give them similar properties, such as the Noble Gases, or the extreme reactivity of Group I metals. Moving across a period, elements will begin to resemble each other less and share fewer properties the further apart they are in the row.
Why does the number of elements from period to period vary?
the number of electrons in each orbital increases, so the number of electrons to form a noble gas configuration in ground state increses.
How do properties of elements change within period?
As you move from left to right across a row (or period) in the periodic table, the following things change: -- atomic size goes down -- electronegativity goes up -- electron affinity goes up See the Web Links and Related Questions links to the left of this answer for more details about why the trends occur and also some important exceptions to these trends.
Why the oxidation states vary in a periodic but remains almost constant in a group?
Because within a group, the elements all have the same number of valence electrons, so their "combining power" (oxidation number) is relatively the same. In a period, the number of valence electrons increases going left to right, so the "combining power" changes.
Elements in the same period have similar properties?
Elements in the same period on the periodic table have the same number of electron shells, which can result in similar chemical properties. However, elements in the same period can have different numbers of protons and electrons, leading to variations in atomic size and reactivity. Therefore, while elements in the same period may share some similarities, they can also exhibit distinct characteristics based on their atomic structure.
