4.4 Periodic Table

I'm an alkaline earth metal with 38 electrons in my neutral atom. What element am I?

• strontium

• calcium

• rubidium

• cesium

I'm a pretty unreactive metal in group 14 (or group 4A). I have 5 energy levels. What element am I?

• zirconium

• tin

• germanium

• lead

I am so proud of myself because I fulfill the octet rule naturally! But I am the exception because I only have 2 valence electrons. What element am I?

• helium

• beryllium

• magnesium

• neon

I am an extremely reactive nonmetal. I have 7 valence electrons and 2 energy levels. What element am I?

• fluorine

• chlorine

• oxygen

• neon

How many valence electrons does this atom have?

• 4

• 3

• 2

• 11

• 9