Summer 2025 Chemistry A #1

Find sodium, aluminum, and phosphorus on your periodic table. What do they have in common?

• They are in the same period.

• They are in the same group

• They have the same number of Protons

• They have the same number of Electrons

Tags

NGSS.HS-PS1-1

As you go across the periodic table, how does atomic size (radius) change?

• It increases

• It decreases

• It stays the same

How does electronegativity change as you move across the periodic table?

• It increases

• It decreases

• It stays the same

Why would the increased number of protons (in the same period) decrease the size of your atom?

How does ionization energy change as you move across a period?

• It increases

• It decreases

• It stays the same

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the relationship between electronegativity & ionization energy? why the 2 trends move in the same direction down a group. How does one affect the other?

Tags

NGSS.HS-PS1-1

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

• It increases

• It decreases

• It stays the same

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What element has the chemical symbol Ag?

• Gold

• Silver

• Copper

• Argon

Is the following compound covalent, ionic, or both?      AlPO₄                                                                                                                                   

• Covalent

• Ionic

• Both

Tags

NGSS.HS-PS1-3

Is the following compound covalent, ionic, or both?          CO₂                                                                                                                               

• Covalent

• Ionic

• Both