39

Who made the theory for evolution?

• Darwin (From Amazing world of Gumball)

• Charles Darwjn

• Charles Darwin

• Darles Charmin

• Charles Darmin

Tags

NGSS.HS-LS4-1

NGSS.HS-LS4-2

NGSS.HS-LS4-3

NGSS.HS-LS4-4

What is the atomic number of Yttrium?

• 38

• 39

• 40

• 41

Which element has an atomic number of 39?

• Strontium

• Yttrium

• Zirconium

• Niobium

In the periodic table, which group does the element with atomic number 39 belong to?

• Alkali metals

• Alkaline earth metals

• Transition metals

• Noble gases

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the electron configuration of the element with atomic number 39?

Tags

NGSS.HS-PS1-1

Which of the following elements is a transition metal with atomic number 39?

• Calcium

• Yttrium

• Scandium

• Titanium

What is the most common oxidation state of the element with atomic number 39?

• +1

• +2

• +3

• +4

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following isotopes is most stable for the element with atomic number 39?

Tags

NGSS.HS-PS1-8

What is the standard atomic weight of the element with atomic number 39?

• 88.905

• 89.905

• 90.905

• 91.905

Which of the following compounds contains the element with atomic number 39?

Tags

NGSS.HS-PS1-1