Elec config test

How many electrons does Si contain? (click to see image)

• 14
• 28
• 2
• 4

Tags

NGSS.HS-PS1-1

How many electrons can the first energy level hold?

• 1
• 2
• 8
• 0

How many electrons can the d sublevel hold?

• 8
• 10
• 2
• 4

What's a valence electron?

• electrons in the second energy level
• electrons in the outermost energy level
• the atomic number
• electrons in the first level

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The electron configuration of an atom is 1s²2s²2p⁶.  The number of electrons in the atom is 

• 3
• 6
• 8
• 10

Tags

NGSS.HS-PS1-1

There are 4 different types of subshells (orbitals) s,p,d,f.

• true
• false

Which of the following is not a sublevel

• s

• p

• n

• f

• d

All matter is composed of

• elements

• blood

• atoms

• electrons

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

What group of elements has a complete outer shell of electrons?

• Alkali metals

• Noble gases

• Halogens

• transition metals

Tags

NGSS.HS-PS1-1

The way in which electrons are arranged in various orbitals around the nucleus

• electron arrangement

• formation

• electron clouds

• electron configuration

Tags

NGSS.HS-PS1-1