Periodic Trends

Front

What is atomic radius?

Back

The atomic radius is the distance from the nucleus of an atom to the outermost shell of electrons. It generally increases down a group and decreases across a period.

Front

Which element has the largest atomic radius in the periodic table?

Back

Francium has the largest atomic radius due to its position in Group 1 and being the heaviest element in that group.

Front

How many valence electrons does a neutral atom of nitrogen have?

Back

A neutral atom of nitrogen has 5 valence electrons.

Front

What is electronegativity?

Back

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. It increases across a period and decreases down a group.

Front

Which element is more electronegative: Chlorine (Cl) or Potassium (K)?

Back

Chlorine (Cl) is more electronegative than Potassium (K).

Front

What is the trend of atomic radius as you move from left to right across a period?

Back

The atomic radius decreases as you move from left to right across a period due to increasing nuclear charge.

Front

Which element has a higher electronegativity than Arsenic (As)?

Back

Carbon (C) has a higher electronegativity than Arsenic (As).

Front

What is the trend of electronegativity as you move down a group?

Back

Electronegativity decreases as you move down a group in the periodic table.

Front

Which atom has the largest radius among Mg, B, S, and Br?

Back

Magnesium (Mg) has the largest radius among these elements.

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds.