Lecture - Atomic Trends

When forming a monatomic ion, what happens to electrons in a cation?

• Electrons are added to the sublevels in the highest principal energy level

• Electrons are removed from the sublevels in the highest principal energy level

• Electrons are distributed equally among all energy levels

• No change occurs to the electron configuration

What is the charge of ions formed by elements in the oxygen family of Group 16?

• +1

• +2

• -1

• -2

What charge do halogens of Group 17 typically form as ions?

• +1

• +2

• -1

• -2

What is the goal for main group atoms when they gain or lose electrons?

• To attain an electron configuration like the nearest alkali metal

• To attain an electron configuration like the nearest halogen

• To attain an electron configuration like the nearest noble gas

• To attain an electron configuration like the nearest transition metal

What term is used to describe ions like N^-3, O^-2, F^-1, Na^+1, Mg^+2, Al^+3, and Ne because they all have the same electron configuration?

• Isotonic

• Isobaric

• Isoelectronic

• Isomeric

Tags

NGSS.HS-PS1-1

Which electron configuration is shared by the isoelectronic ions N^-3, O^-2, F^-1, Na^+1, Mg^+2, Al^+3, and Ne?

• 1s^22s^22p^4

• 1s^22s^22p^6

• 1s^22s^22p^3

• 1s^22s^22p^5

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Transition metal cations usually do not form ions with which configurations?

• Noble-gas configurations

• Halogen configurations

• Alkali-metal configurations

• Alkaline-earth-metal configurations

Tags

NGSS.HS-PS1-1

What is the range of charges that cations of transition metals can form?

• 0 to +1

• +1 to higher numbers

• -1 to lower numbers

• +2 to +8

According to the first-in, first-out rule, which electrons are lost first in transition metals?

• p electrons

• d electrons

• f electrons

• s electrons

What is the electron configuration of Mn2+?

• [Ar] 4s23d5

• [Ar] 3d5

• [Ar] 4s13d5

• [Ar] 3d4

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2