Sodium and Fluorine Properties and Reactions

The video explores the properties and atomic structure of sodium, a metal found in group one of the periodic table. It explains sodium's atomic number, electron configuration, and how it forms ions by losing its valence electron. The video also discusses periodic table trends in valence electrons and ionic charges, and demonstrates the formation of an ionic bond between sodium and fluorine, resulting in sodium fluoride.

What is a notable property of sodium metal?

• It is a hard metal.

• It is non-conductive.

• It is malleable and shiny.

• It is a gas at room temperature.

How many protons does a sodium atom have?

• 13

• 12

• 11

• 10

What is the electron configuration notation for the first energy level of sodium?

• 2p6

• 1s2

• 1s1

• 2s1

What happens to sodium's outer shell when it loses its valence electron?

• It gains an electron.

• It becomes a full shell.

• It becomes negatively charged.

• It disappears.

What is the charge of a sodium ion after losing its valence electron?

• 1-

• 0

• 2+

• 1+

Which group on the periodic table does sodium belong to?

• Group 17

• Group 2

• Group 1

• Group 18

What is the general trend for ionic charges in Group 1 elements?

• They form 2+ ions.

• They form 2- ions.

• They form 1+ ions.

• They form 1- ions.

How many valence electrons does fluorine have?

• 6

• 8

• 7

• 5

What type of bond is formed between sodium and fluorine?

• Covalent bond

• Ionic bond

• Hydrogen bond

• Metallic bond

What happens to fluorine when it gains an electron from sodium?

• It loses its outer shell.

• It becomes positively charged.

• It becomes negatively charged.

• It becomes neutral.