Semester 1 Final exam review '24 part 2

Front

What is a metalloid?

Back

A metalloid is an element that has properties of both metals and nonmetals. An example is arsenic.

Front

How do you determine the density order of liquids?

Back

To determine the density order of liquids, you compare their masses and volumes. The liquid with the highest mass per unit volume is the most dense.

Front

What is the name of the ionic compound Na2S?

Back

The name of the ionic compound Na2S is Sodium sulfide.

Front

What is the electron configuration of an oxygen atom?

Back

The electron configuration of an oxygen atom is 1s² 2s² 2p⁴.

Front

Which atom has the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹?

Back

The atom with the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ is Potassium.

Front

What are the characteristics of metals?

Back

Metals are typically shiny, good conductors of heat and electricity, malleable, and ductile.

Front

What are the characteristics of nonmetals?

Back

Nonmetals are usually dull, poor conductors of heat and electricity, brittle in solid form, and can be gases or solids.

Front

What is the significance of electron configuration?

Back

Electron configuration determines how an atom interacts with other atoms, influencing its chemical properties and reactivity.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons from one atom to another, while covalent bonds involve the sharing of electrons between atoms.

Front

What is the periodic table?

Back

The periodic table is a tabular arrangement of elements organized by increasing atomic number, showing periodic trends in properties.