Which type of chemical bond holds Cr (Chromium) together?

• Ionic bonding

• Covalent bonding

• Hydrogen bonding

• Metallic bonding

Which group will have elements with the electron dot diagram as shown in the picture below?

• Group 16

• Group 15

• Group 5A

• Group 18

Tags

NGSS.HS-PS1-1

How does the number of valence electrons change as one moves from top to bottom across group 13 of the periodic table?

• stays the same

• increases by 1

• The relationship cannot be predicted

• decreases by 1

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Select all possible answers: CHOOSE 2 CORRECT ANSWERS. Properties of metals that are NOT possible because of their freely moving electrons include the ability to

• conduct electricity.

• bend without breaking.

• form hydrogen bonds.

• shatter when force is applied.

Which equation correctly shows the most common ion formation of the given element?

• K → K²+ + 2€¯

• Ba → Ba²+ +2e=

• Ca Cat + e-

• Al →→ Al+ + e-

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

When elements form ionic compounds, which elements achieve full octets?

• metals only

• Neither achieves a full octet

• metals and nonmetals

• nonmetals only

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which equation correctly shows the most common ion formation of the given element?

• O + e → 0¯

• P+2e → P²-

• F + 2e → F2-

• I + e- → I-

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which two elements would NOT be capable of forming an ionic bond?

• iodine and sodium

• phosphorus and chlorine

• barium and nitrogen

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is the correct formula for sodium oxide?

• Na₂03

• NaO₂

• Na₂O

• NaO

• Na304

How do ionic bonds form?

• atoms of metals elements give up electrons to atoms of nonmetals elements

• atoms of nonmetals elements give up electrons to atoms of metal elements

• atoms of metals elements accept electrons from atoms of nonmetals elements

• both metals and nonmetals elements can give up and accept electrons.