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Why does non metallic character increase across a period?

Ans: The elements which have a tendency to gain electrons are known as non-metals. The tendency to gain electrons increases on moving across a period due to an increase in the nuclear charge and decrease in the atomic size. Hence, the non-metallic character increases across a period.

What is the periodic trend for non metal reactivity in a period?

In Non-metals Period – reactivity increases as you go from the left to the right. Group – reactivity decreases as you go down the group.

What increases as you move across the periodic table?

Electron affinity increases from left to right across the periodic table. This is caused by the decrease in atomic radius. As we already explained, moving from left to right across a period, atoms become smaller and smaller as the atomic number increases. Electron affinity decreases as we proceed down a group.

How does metallic character increase on the periodic table?

Metallic character increases as you move down an element group in the periodic table. This is because electrons become easier to lose as the atomic radius increases, where there is less attraction between the nucleus and the valence electrons because of the increased distance between them.

What are the 3 sides of a triangle called?

In a right triangle, the hypotenuse is the longest side, an “opposite” side is the one across from a given angle, and an “adjacent” side is next to a given angle. We use special words to describe the sides of right triangles.

What are 4 types of triangles?

Triangle Types and Classifications: Isosceles, Equilateral, Obtuse, Acute and Scalene.

What is the sum of all 3 angles in a triangle?

The sum of the three angles of any triangle is equal to 180 degrees. Now let’s try a problem.

What is the sum of all angle of a triangle?

Angles in a triangle sum to 180° proof.