Gen Chem Exam 1
How many unpaired electrons are contained in each element: Magnesium
0 unpaired electrons
How many unpaired electrons are contained in each element: Aluminum
1 unpaired electrons
What element has this electron configuration: [Ar]4s1
Potassium
What element fits this description: the element with electrons just filling the first and second shells
Neon
What is the orbital diagram of magnesium?
1s: ^v 2s: ^v 2p:^v ^v ^v 3s: ^v
How many electrons are present in a 3s orbital?
2 electrons
How many unpaired electrons are contained in each element: Oxygen
2 unpaired electrons
How many electrons are present in the second shell?
8 electrons
What element fits this description: the element with a completely filled first shell and three electrons in the second shell
Boron
What element fits this description: the element with a completely filled first and second shell, and seven electrons in the third shell
Chlorine
What element has this electronic configuration: 1s2 2s2 2p6 3s2 3p5
Chlorine
To which blocks do the elements in the fifth period belong?
s block, p block, d block
