Ion Formation Check, Please

What is the ion charge assigned to the elements in Group 2

• 0
• -2
• +2
• +1

What is the charge on the ion assigned to the elements in Group 16 on the periodic table?

• -2

• +3
• 0
• -3

How is a cation named?

• Cations are named by the element name only.
• Cations are named by the element symbol followed by 'ion'.
• Cations are named by the element name followed by 'ion'.
• Cations are named by their charge followed by 'ion'.

How are anions named?

• Anions are named by adding '-ide' for simple anions

• Anions are named by their color and size.
• Anions are named using the element's atomic number.
• Anions are named by adding '-ate' for all anions.

What is the name of K+?

• Calcium ion
• Potassium ion
• Potasside

• Magnesium ion

What is the name of Br-?

• Bromine
• Bromate
• Bromic
• Bromide

Cations are made from _______.

• metals

• non-metals

Ionic compounds are formed when

• atoms gain protons to form cations
• molecules combine without electron transfer
• atoms share electrons equally to form bonds
• atoms transfer electrons to form cations and anions

Tags

NGSS.MS-PS1-5

What are characteristics of ionic compounds?

• Ionic compounds are gases at room temperature and do not conduct electricity.
• Ionic compounds have high melting and boiling points, are soluble in water, and conduct electricity when dissolved or molten.
• Ionic compounds have low melting points and are not soluble in water.
• Ionic compounds are always colored and have a sweet taste.

What is the ion and its name that is formed when phosphorous gains 3 electrons?

• Phosphide (P^3-)

• Phosphate ion (P³⁺)

• Phosphite (P^2-)

• Phosphate (PO^₄3-)

Tags

NGSS.HS-PS1-2