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What is the trend found in Period 3 on the Periodic Table as the elements increase in atomic number?
Wiki User
∙ 11y ago
1-Atomic size = decreases
2-Ioniztion energy = increases
3-Electronegativity = increases (except Argon)
4-Metallic character = decreases
5-Melting point = first increases then decreases
Wiki User
∙ 11y ago
Wiki User
∙ 11y agoThe atomic radius decreases, and the first ionization energy generally increases.
Wiki User
∙ 11y agoThe atomic numbers increase as you move from left to right in the same period or row on the Periodic Table.
Wiki User
∙ 12y agoincreasing first ionization energy
Wiki User
∙ 11y agoPay attention in class it will help
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What happens to the reactivity of elements in a group labeled A as atomic numbers increase across 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 trend in atomic radius do you see as you go down a group on the periodic?
The atomic radius of elements increases as you go down a group. This increase in radius as you go down a period is primarily caused by the increasing principal quantum number of the outer electron shells.
How do atomic numbers and atomic masses increase in the periodic table?
The atomic number and atomic masses increase as you move from left to right.
Does the atomic radius decrease as you move up a group and across a period from left to right on the periodic table?
the atomic radius decreses from left to right in periodic table due to increase in the number of succesive element the electrons of the outermost shell are more attracted towards nucleus and the atomic radius or atomic size decreases.
How does the atomic raduis change across a period of the periodic table?
Atomic radius usually decreases from left to right across a period of the periodic table.
How are the size of the elements effected on the periodic table?
Atomic size increase down the group and decreases across the period.
What do elements in same atomic period have?
Elements in the same period of the periodic table have sequentially increasing numbers of protons.
Arranged the elements in the periodic table according to increase in atomic weights?
Mendeleev.
How is the periodic law organized?
The period law states that the elements are the periodic function of their atomic number. Hence they are arranged in order of increasing atomic number.
What does the periodic law establishes?
The Periodic Law states that: The principle that the properties of the elements recur periodically as their atomic numbers increase.
What are the characteristics of a period in the periodic table?
Elements in a period all have the same number of electron shells (excepting the transition elements). Also, electronegativity increases left to right and up, and atomic radii increase right to left and down.
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.
Does elements 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 is the trend from left to right for atomic mass on the periodic table?
The atomic weight (not mass) increase from left to right in a period.
Which of the given elements has the smallest atomic radius in 3rd period in periodic table?
Lithium(520)
What are characteristics of the period table?
The elements in the periodic table are arranged in order of increasing atomic number.
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.
