Nces

Element X has 8 protons, 7 neutrons, and 10 electrons. What is the charge?

• 0

• +2

• -2

• -1

Zirconium has a mass number of 91, and 38 electrons. How many neutrons does it have?

• 40

• 38

• 51

• 53

Tags

NGSS.MS-PS1-1

Which element has 3 shells and 5 valence electrons

• Vanadium

• Arsenic

• Yttrium

• Indium

Tags

NGSS.HS-PS1-1

What is the electron configuration for the element in period 3, group 16

• 2, 8, 8, 1

• 2, 6

• 2, 8, 6

• 2, 8, 16

Tags

NGSS.HS-PS1-1

Which element has the following electronic configuration: 1s²2s²2p¹

• carbon

• sodium

• beryllium

• boron

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which element has the following electronic configuration: 1s²2s²2p⁶3s²3p⁶4s²3d¹

• scandium

• titanium

• gallium

• calcium

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The elements in the vertical group 18 are called

• Halogens

• Noble Gases

• Alkali Metals

• Alkaline Earth Metals

Halogens are in group...

• 16

• 17

• 18

• 15

What name is given to the elements of the d-block?

• Metalloids

• Alkali Metals

• Transition metals

• Rare Earth Metals

Alkaline Earth Metals will:

• gain 2 electrons

• lose 2 electrons

• gain 1 electron

• lose 1 electron