Periodic Table Trends

Front

What is electronegativity (EN)?

Back

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.

Front

Which element has a higher electronegativity: H or F?

Back

F has a greater electronegativity than H.

Front

Which element has a higher electronegativity: N or C?

Back

N has a greater electronegativity than C.

Front

What is the current basis for organizing elements in the periodic table?

Back

Elements are organized by atomic number, which is the number of protons in the nucleus.

Front

Which group of elements has similar properties according to the periodic table?

Back

Noble gases like He, Ne, and Ar have similar properties.

Front

How many valence electrons does magnesium (Mg) have?

Back

Magnesium (Mg) has 2 valence electrons.

Front

What are valence electrons?

Back

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

Front

What is the trend in electronegativity across a period in the periodic table?

Back

Electronegativity increases across a period from left to right.

Front

What is the trend in electronegativity down a group in the periodic table?

Back

Electronegativity decreases down a group.

Front

What is atomic radius?

Back

Atomic radius is the distance from the nucleus of an atom to the outermost shell of electrons.