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Why does the trend in electronegativey of elements across a period increase from left to right?
It increases from left to right across a period because as electrons are added to the same energy level, and the closer an atom gets to having an octet of electrons, the easier it is for the atom to attract electrons from other atoms, either through ionic bonding or covalent bonding.
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How do elements in a period behave?
Elements in a period share the same number of electron shells, leading to similar chemical behaviors. As you move across a period from left to right, the atomic number and number of protons increase, leading to a gradual increase in electronegativity, ionization energy, and atomic size. Elements at the beginning of a period tend to be metals, while those at the end are nonmetals.
Why does atomic size increase from left to right across a period?
atomic size decreases across a period
Ionization energies tend to do what from left to right across a period?
increase from left to right across a period.
How does the numbers of electrons change across a period of elements?
The number of valence electrons for the elements increases across a period, from 1 (group 1) to 8 (group 18).
From left to right across the second period of the periodic table?
The second period of the periodic table contains elements from lithium to neon, in increasing atomic number order. These elements have increasing numbers of protons and electrons as you move from left to right across the period, resulting in changes in properties such as atomic size and reactivity.
What happens to the reactivity of elements in group a as atomic number increase across a period?
they do becaused they want to do it
How are the size of the elements effected on the periodic table?
Atomic size increase down the group and decreases across the period.
What happens to the reactivity of elements in a group labeled A as atomic numbers increase across period?
In a group labeled as A, as atomic numbers increase across a period, the reactivity of elements generally decreases. This is because as you move from left to right across a period, the elements have more protons in the nucleus, which leads to stronger nuclear charge and less tendency to lose electrons and react with other elements.
Why does the first ionization energy generally increase across a period for the main group elements?
The first ionization energy generally increases across a period for main group elements because as you move from left to right across a period, the effective nuclear charge increases, making it harder to remove an electron from the outer shell. This results in a higher energy requirement to remove an electron, leading to an increase in ionization energy.
How does metallic of the elements vary across a period?
Across a period, the metallic character decreases.
How do elements in a period behave?
Elements in a period share the same number of electron shells, leading to similar chemical behaviors. As you move across a period from left to right, the atomic number and number of protons increase, leading to a gradual increase in electronegativity, ionization energy, and atomic size. Elements at the beginning of a period tend to be metals, while those at the end are nonmetals.
What is the trend in period 2 ionization energy across the elements?
The trend in period 2 ionization energy across the elements increases from left to right.
Why does atomic size increase from left to right across a period?
atomic size decreases across a period
Ionization energies tend to do what from left to right across a period?
increase from left to right across a period.
How does the numbers of electrons change across a period of elements?
The number of valence electrons for the elements increases across a period, from 1 (group 1) to 8 (group 18).
How does the number of valence electrons for elements across a period?
The number of valence electrons for the elements increases across a period, from 1 (group 1) to 8 (group 18).
From left to right across the second period of the periodic table?
The second period of the periodic table contains elements from lithium to neon, in increasing atomic number order. These elements have increasing numbers of protons and electrons as you move from left to right across the period, resulting in changes in properties such as atomic size and reactivity.
