Electron cloud review

The number of electrons in the outermost energy level determines the ________ properties of an element.

• physical

• atomic

• nuclear

• thermal

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The electrons in the outermost energy level are called ________.

• valence electrons

• core electrons

• protons

• neutrons

Which group of elements makes up most of the periodic table?

• Nonmetals

• Metalloids

• Metals

• Noble gases

Metals are good conductors of ________ and ________.

• heat and electricity

• light and sound

• water and oil

• air and dust

Which of the following is NOT true about metals at room temperature?

• They are all solid

• They are all liquid

• They are solid except mercury (Hg)

• They are gases

What property of metals allows them to reflect light?

• Malleability

• Ductility

• High luster

• Brittleness

Malleable means metals can be ________.

• hammered into sheets

• dissolved in water

• burned easily

• magnetized quickly

Ductile means metals can be ________.

• drawn into wires

• broken easily

• melted quickly

• rusted easily

To which group do Alkali Metals belong?

• Group 1

• Group 2

• Group 17

• Group 18

How many valence electrons do Alkali Metals have?

• One

• Two

• Three

• Four