What group in the periodic table are the alkali metals found?

• I

• II

• III

• VII

Tags

NGSS.HS-PS1-1

Which of the following elements is a metalloid?

• Nitrogen

• Carbon

• Aluminium

• Silicon

What is the chemical symbol for potassium

• P

• K

• Po

• Pt

The atomic radius increases....

• across a period

• down a group

• diagonally up towards the top right hand side of the periodic table

• occasionally depending on the conditions of the element

Tags

NGSS.HS-PS1-1

What element in the periodic table has the largest atomic radius?

• Caesium

• Francium

• Radon

• Thorium

Tags

NGSS.HS-PS1-1

What is electronegativity?

• The negative charge on an atom

• The "electron pulling" power of an ion

• The measure of the "electron pulling" power of an atom towards another atoms electrons

• The total negative charge of the electrons in an neutral atom

What is a cation?

• An ion

• A negative ion

• A positive ion

• An atom that has gained electrons

Which of the following species has delocalised electrons?

• FeO

• O₂

• NO₃^-

• Fe

Which of the following substances would be malleable, ductile and be a good conductor of electricity?

• Copper chloride

• Chlorine

• Copper

• Silicon dioxide

Choose all of the substances that would be good conductors of electricity.

• Mg _(s)

• NaF _(s)

• MgCO_{3 (aq)}

• CO_{2 (g)}

Tags

NGSS.HS-PS1-3

NGSS.HS-PS2-5

NGSS.HS-PS2-6