FLASHCARD: Periodic Trends WS 1-3 2024

Front

What is the shielding effect?

Back

The shielding effect refers to the phenomenon where inner electrons reduce the effective nuclear charge felt by outer electrons, making it easier for them to be removed or less attracted to the nucleus.

Front

Which group do calcium and barium belong to?

Back

Calcium and barium are both in Group 2 of the periodic table, known as the alkaline earth metals.

Front

What is a metalloid?

Back

Metalloids are elements that have properties intermediate between metals and nonmetals. They are typically semiconductors.

Front

Which element is more electronegative: Fluorine or Chlorine?

Back

Fluorine is more electronegative than Chlorine because it has fewer occupied energy levels, allowing it to attract electrons more effectively.

Front

What are alkali metals?

Back

Alkali metals are the elements found in Group 1 of the periodic table, characterized by having one electron in their outermost shell.

Front

What is the periodic trend for atomic radius?

Back

Atomic radius generally increases down a group and decreases across a period from left to right due to increased nuclear charge.

Front

What is electronegativity?

Back

Electronegativity is a measure of an atom's ability to attract and hold onto electrons in a chemical bond.

Front

What is the significance of the periodic table's groups?

Back

Elements in the same group have similar chemical properties and the same number of valence electrons.

Front

What is the difference between metals and nonmetals?

Back

Metals are typically good conductors of heat and electricity, malleable, and ductile, while nonmetals are poor conductors and are often brittle.

Front

What is the trend for ionization energy across a period?

Back

Ionization energy generally increases across a period from left to right due to increasing nuclear charge.