Testing for Cations and Anions

Looking at the periodic table, when the alkali metals form an ion what charge do they have?

• 1-

• 1+

• 2-

• 2+

• 3-

Looking at the periodic table, when the alkaline earth metals form an ion what charge do they have?

• 1-

• 1+

• 2-

• 2+

• 3-

Tags

NGSS.MS-PS1-5

Looking at the periodic table, when the halogens form an ion what charge do they have?

• 1-

• 1+

• 2-

• 2+

• 3-

Tags

NGSS.MS-PS1-1

Nitrogen, N, will form which of the following ions?

• N

• N^-3

• N^-5

• N⁺⁵

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

In the compound aluminum oxide, which is the cation?

• [ Al ] ⁺³

• Al

• [ O ] ^-2

• O

Tags

NGSS.MS-PS1-1

Which of the following is the correct formula for Potassium Sulfide

• K₂S

• KS₂

• K₃S

• K₂S₃

Tags

NGSS.MS-PS1-1

If I had an anion with a charge of ^3- how would you describe the formation of that ion?

• gained 2 electrons

• lost 2 electrons

• gained 3 electrons

• lost 3 electrons

An element gains two electrons. This element is:

• An anion with a +2 charge

• A cation with a +2 charge

• An anion with a -2 charge

• A cation with a -2 charge.

Which of the following will become a positively charged cation?

• An atom with 2 valence electrons

• An atom with 7 valence electrons

• An atom with 5 valence electrons

• An atom with 8 valence electrons

If an element gains one electrons, what charge will it have as an ion?

• +1

• -1

• Zero

• -2