Exploring Periodic Trends in Chemistry

What does Coulomb's law explain in the context of periodic trends?

• The formation of ionic bonds

• The behavior of gases under pressure

• The relationship between atomic number and nuclear attraction

• The properties of noble gases

Tags

NGSS.HS-PS2-4

How does atomic radius change as you move from left to right across a period?

• It increases

• It fluctuates

• It decreases

• It remains the same

What is the definition of atomic radius?

• The distance between two different atoms

• The size of the nucleus

• One half the distance between the nuclei of two identical atoms bonded together

• The distance between the nucleus and the outermost electron

How does reactivity change for non-metals as you move up a group?

• It fluctuates

• It increases

• It remains the same

• It decreases

What is the shielding effect?

• The blocking of nuclear attraction by inner electrons

• The attraction between the nucleus and the outer electrons

• The increase in atomic size

• The repulsion between electrons in the same energy level

Which element is the most electronegative?

• Chlorine

• Fluorine

• Nitrogen

• Oxygen

What is the electronegativity of noble gases?

• High

• Variable

• Low

• Zero

What does ionization energy measure?

• The reactivity of an element

• The energy required to remove an electron from a neutral atom

• The ability of an atom to attract electrons

• The size of an ion

How does ionization energy change as you move up a group?

• It fluctuates

• It remains the same

• It decreases

• It increases

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What happens to the size of an atom when it becomes a cation?

• It fluctuates

• It remains the same

• It decreases

• It increases