GENCHEM Activity 1.1

Atomic number of oxygen

(a)  

Outermost shell of atom

(a)  

Valence electrons of Sodium

(a)  

Meaning of D in LEDS.

(a)  

P in SPDF means...

(a)  

Tells the location of an electron in an atom.

• Atomic number

• atomic mass

• electron configuration

Maximum number of atoms S subshell can hold.

(a)  

Maximum number of electrons F subshell can hold.

(a)  

What element has an electron configuration of 1s²2s²2p²?

• Calcium

• Sodium

• Carbon

What element has an electron configuration of 1s²2s²2p⁶3s¹?

(a)