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A measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding shells of electrons.

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Atomic Radii is a measure of the distance from the center of the nucleus to the boundary of the surrounding shells of electrons.

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Atomic Radii is a measure of the size of its atoms usually the mean or typical distance from the center of the nucleus to the boundry of the surrounding shells.

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Atomic Radii is a measure of the size of its atoms, typically the distance from the center of the nucleus to the boundary of the surrounding shells of electrons

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Atomic Radii is the measure of the size of its atom. This is the distance between the atom's nucleus and outer electron shell.

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The atomic radii decreases across a period.

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The atomic radii increases going down a group.

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The number of energy levels goes up as you move down a group as the number of electrons goes up

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The number of energy levels increases as you move down a group as the number of electrons increases.

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This happens because as you move down a group the number of electrons increases therefore it changes.

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The atomic radius of atoms decrease from left to right across a period

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It happens because as you move down a group the electrons increases.

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Atomic radius decreases while going across a period

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The atomic radius increase when moving down a group of the periodic table

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As you move across a period, the atomis radii decreases, making the atom smaller.

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The atomic radii increases when going down a group.

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The atomic radii increases while going down a group

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The number of energy levels increases as you move down a group as the number of electrons increases so therefore it changes.

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The atomic radius of a chemical element measure of the size of it;s atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding shells of electrons

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The atomic radius of a chemical element is a measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding shells of electrons

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that happens when you move down a group the number of electrons increases therefore it changes

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the size of an atom will decrease as you move from left to the right of a certain period

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Atomic radii increases as you move downwards in a group

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In general, atomic radius decreases across a period and increases down a group.

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The atomic radius is commonly stated as the total distance from the nucleus of an atom to the electron’s outermost orbital. It can be defined as something close to a circle’s radius, where the nucleus is the center of the circle and the electron’s outer edge is the outermost orbital.

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Energy levels increase as groups are moved down while the number of electrons increase as well. Therefore, causing a change.

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It decreases as it moves across.

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The atomic radius increases as you go down a group.

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The atomic radii increases as you move down a group.

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The distance between an atom's nucleus and outer electron shell

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Number of energy levels increases as you move down a group as the number of electrons increases.

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The decreasing of an atom as it moves across

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The increasing as you

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The distance from the nucleus of an atom to the outermost orbital of its electron.

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It happens when the number of energy levels increases as you move down a group.

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The atomic radius decreases starting from the left and moves across a period.

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When moving down a group of the periodic table, it increases when down a group.