Chemistry Mid-Term Review22

Which ions will combine to form Sodium chloride

• Na^2- and Cl²⁺

• Na²⁺ and Cl^2-

• Na^- and Cl⁺

• Na⁺ and Cl^-

Carbon, Sulfur, Helium, and Chlorine.

Of these use the Periodic table of elements to choose the most stable element.

• Carbon

• Sulfur

• Helium

• Chlorine

Which of the following is a halogen?

• neon

• scandium

• bromine

• arsenic

The elements in Group 17 are called

• halogens

• alkaline earth metals

• alkali metals

• semimetals

Which of the following pairs of atoms include a metal and a non-metal?

• K and O

• Be and Ag

• P and Cl

• Si and As

How can metals be distinguished from non-metals on the periodic table?

• All metals are located in the central regions of the periodic table or the d and f blocks

• Metals are located to the right of the staircase and non-metals are found to the left

• Metals and non-metals are randomly mixed together throughout the periodic table

• Metals are located to the left of the staircase and non-metals are found to the right

Bromine (Br) is classified as what type of element?

• metal

• metalloid

• halogen

• both A and C

Which of the following elements is classified as a non-metal?

• Te

• H

• Ce

• As

Which of the following elements is a halogen?

• Br

• Kr

• Yb

• Both Br and Yb

Which of the following elements is a non-metal?

• Radium

• Sodium

• Arsenic

• Nitrogen