Periodic trends

The atom with the largest atomic radius in Group 18 is - 

• Ar
• He
• Kr
• Rn

Tags

NGSS.HS-PS1-1

As you move down a group, atomic radius increases because - 

• you add more and more neutrons
• you add more and more protons
• you add more and more shells (energy levels)
• you add more atomic mass

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

• K
• Kr
• Fe
• Fe

Of the halogens, which has the smallest radius?

• F

• Br

• He

• At

Tags

NGSS.HS-PS1-1

Which of the following halogens has the greatest electronegativity?

• Chlorine (Cl)

• Bromine (Br)

• Iodine (I)

• Astatine (At)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which group of elements has the lowest ionization energies?

• Alkali Metals (Group 1)

• Alkaline Earth Metals (Group 2)

• Halogens (Group 17)

• Noble Gases (Group 18)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the amount of energy required to remove an electron from an atom?

• atomic energy

• ionization energy

• ionic energy

• electron energy

What is one-half the distance between the nuclei of identical atoms that are bonded together?

• atomic radius

• atomic diameter

• atomic width

• atomic length

Tags

NGSS.MS-PS1-1

What is a measure of the tendency of an atom to attract a bonding pair of electrons when the atom is in a compound?

• ionization energy

• electropositivity

• electronegativity

• electron energy

What is a positively-charged ion which forms when an atom loses electrons?

• atom

• ion

• cation

• anion