Periodic Trends Practice

The atom with the largest atomic radius in Group 18 is ___.

• Ar

• He

• Kr

• Rn

Tags

NGSS.HS-PS1-1

As you move across the periodic table from left to right, the atomic radius decreases.  This is because - 

• the number of protons increases, so attraction to electrons increases
• the number of energy levels increases
• the number of electrons increases
• the atomic mass increases

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The atom with the largest atomic radius in Period 4 (row 4) is ____.

• K

• Kr

• Fe

• Fe

Tags

NGSS.HS-PS1-1

Electronegativity is...

• the ability of an atom to attract/ accept electrons
• the ability of an atom to lose electrons
• the energy required to remove an electron from a specific atom
• how easy it is to make friends. 

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following will have a larger atomic radius than zinc?

• Gallium

• Aluminum

• Magnesium

• Strontium

Tags

NGSS.HS-PS1-1

Which of the following will have a higher electronegativity than arsenic (As)?

• Carbon (C)
• Neon (Ne)
• Antimony (Sb)
• Germanium (Ge)

Tags

NGSS.HS-PS1-1

Ionization energy is defined as ____.

• the energy required to add an electron to a specific atom

• how much energy it takes to remove an electron from an atom

• the energy required to shield the outer electrons from the nucleus

• a measure of the ability of an atom to attract electrons

Tags

NGSS.HS-PS1-2