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Does an element on the periodic table decrease in atomic size when you move across a period from left to right and when you move down a group?
1. In a period is a trend of decrease from left to right but it is not absolute.2. In a group the atomic radius increase moving down.
Is it true Moving across a row of the periodic table the atoms tend to get bigger?
Yes, as you move across a row (period) of the periodic table from left to right, the atomic radius tends to decrease. This is due to the increasing effective nuclear charge, which pulls the electrons closer to the nucleus, making the atoms smaller.
When moving down a column in the periodic table what increases?
When moving down a column in the periodic table, the atomic radius increases due to the addition of electron shells. This results in a greater distance between the nucleus and the outermost electrons. Additionally, the shielding effect increases, as inner electron shells partially block the nucleus's positive charge, reducing the effective nuclear charge experienced by the outer electrons. Consequently, this can also lead to a decrease in ionization energy and electronegativity.
In the periodic table atoms are arranged from left to right and from top to bottom in what order?
Atoms in the periodic table are arranged in order of increasing atomic number, which is the number of protons in an atom's nucleus. This arrangement also reflects the periodic law, where elements with similar chemical properties are grouped together in columns, known as groups or families. As you move from left to right across a period, the elements transition from metals to nonmetals, while moving down a group shows elements with similar behavior but increasing atomic size and reactivity.
Why does reactivity of the halogens decrease down the group?
As it go down the group, the distance between the nucleus (+ve) and the last electron (-ve) becomes smaller No: BIGGER.Therefore the electrons are held in the atom very tightly more loosely by a strong weakening force from the nucleus.So, it is said as the reactivityDEcreases down the group of NON-metals which gain stronger their electrons andINcreases down the group of metals which loose those electrons.
When moving down the middle of the periodic table is there an increase in nonreactive atoms?
yes
How does the the reactivity of metals change when moving from left to right on the periodic table?
The metals on the left side of the periodic table are considered to be highly reactive to air while in room temperature. The ones on the right side are less reactive and are often used for construction.
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.
Does an element on the periodic table decrease in atomic size when you move across a period from left to right and when you move down a group?
1. In a period is a trend of decrease from left to right but it is not absolute.2. In a group the atomic radius increase moving down.
What determines an element's reactivity?
The electrons determine the reactivity. How many valence electrons there are. It is easier to lose one electron rather than three, so an element with one valence electron will be more reactive than one with three.
Is it true Moving across a row of the periodic table the atoms tend to get bigger?
Yes, as you move across a row (period) of the periodic table from left to right, the atomic radius tends to decrease. This is due to the increasing effective nuclear charge, which pulls the electrons closer to the nucleus, making the atoms smaller.
Moving tree branches to and fro is which type motion?
Periodic Motion
When moving across a period in the periodic table?
The atomic number increases
Does wind or moving air decrease the rate of evaporation?
No, it increases the rate.
When moving down a column in the periodic table what increases?
When moving down a column in the periodic table, the atomic radius increases due to the addition of electron shells. This results in a greater distance between the nucleus and the outermost electrons. Additionally, the shielding effect increases, as inner electron shells partially block the nucleus's positive charge, reducing the effective nuclear charge experienced by the outer electrons. Consequently, this can also lead to a decrease in ionization energy and electronegativity.
Does the atomic number increase when moving left to rt on periodic table?
Yes.
