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As you move across a period elements have the same number of?
As you move across a period, elements have the same number of electron shells but different numbers of valence electrons. This leads to differences in reactivity and chemical properties across the period.
What is the trend of valence electrons across each period?
The number of valence electrons increases as you go across a period. For example in period 2 the number of valence electrons rises from 1 in Li up to 8 in neon.
The valence electrons found in metals are different from nonmetals because .?
metals can conduct electricity, the valence electrons of nonmetals cannot roam freely
What do you notice about the number of valence electrons as you move down or up a group or column in the Periodic Table?
The number of Valence electrons of an element is the same number as the element's group number. E.g. Hydrogen is in Group 1. Therefore it has 1 valence electron. Another e.g. Oxygen is in Group 6. Therefore it has 6 valence electrons.
What happens to the valence electrons of atoms in metallic bond?
In metallic bonding, valence electrons are delocalized and free to move among the atoms. This creates a "sea of electrons" that holds the metal atoms together in a lattice structure. The sharing of electrons in this way gives metals their characteristic properties, such as conductivity and malleability.
What do you notice about the number of valence electrons as you move from left to right across a row or period?
The number of valence electrons increases from left to right across a period.
What happens to the reactivity of metals from left to right across the perriodic table?
Elements become less reactive as you move from left to right across the periodic table. This is due to how many valence electrons (outer-most electrons) the element has; the less valence electrons, the more reactive the element.
As you move across a period elements have the same number of?
As you move across a period, elements have the same number of electron shells but different numbers of valence electrons. This leads to differences in reactivity and chemical properties across the period.
What don you notice about the number of valence electrons as you move from left to right across a row or the period in the periodic table na-mg-al-si-p-s-ci-ar?
The number of valence electrons increases by one as you move from left to right across a period in the periodic table. Sodium (Na) has 1 valence electron, magnesium (Mg) has 2 valence electrons, aluminum (Al) has 3 valence electrons, silicon (Si) has 4 valence electrons, phosphorus (P) has 5 valence electrons, sulfur (S) has 6 valence electrons, chlorine (Cl) has 7 valence electrons, and argon (Ar) has 8 valence electrons.
What pattern do you notice as you move across or down the table when considering valence electrons?
As you move across a period in the periodic table from left to right, the number of valence electrons increases, typically from one to eight, as elements gain electrons in their outer shell. Conversely, as you move down a group, the number of valence electrons remains the same, but the energy level increases, meaning that the valence electrons are found in higher energy levels further from the nucleus. This results in similar chemical properties within a group, despite differing reactivity and size.
What happens to an atom's size as you move from left right across a period?
Atomic Radius Decreases from left to right. From left to right the amount of valence shell electrons increases, maxing out at 8. These valence electrons are pulled by the positively charged nucleus, thus making it smaller from left to right.
What stays the same as you move across a period on the periodic table?
The energy of the valence shell remains the same.
What element has the fewest valence electrons in period two?
In period two of the periodic table, lithium (Li) has the fewest valence electrons, with only one valence electron. This is characteristic of alkali metals, which are found in group one. As you move across the period, elements gain additional valence electrons, with neon (Ne) having eight.
How can period number related to the location of valence electrons?
The period number corresponds to the energy level on which the valence electrons are located. As you move across a period from left to right, the number of valence electrons increases by one. This helps determine the reactivity and chemical properties of elements within the same period.
What do you notice about the number of valence electrons as you move from left to right across a periodic table example Na-Ar?
The number of valence electrons increases by one as you move from left to right across a period on the periodic table example Na to Ar. This is because the number of protons increases across the period, leading to an increase in the number of electrons in the outermost energy level.
How do valence electrons in a metal move?
They move throught the matel
What is the trend of valence electrons across each period?
The number of valence electrons increases as you go across a period. For example in period 2 the number of valence electrons rises from 1 in Li up to 8 in neon.
