04.13.23 Review

How many sig figs are in 2.30?

How many sig figs are in 12000

What is 2.3460 * 10^5 in regular notation?

Which is a measure of volume?

• millimeters

• milligrams

• milliliters

• none of the above

If a car is moving at 75.0 miles per hour, how many feet is it traveling per second?

What is the density of a liquid that weighs 54g but takes up 84.0 mL?

How many protons, neutrons, and electrons are in an atom of Magnesium?

• p-12

  n-12

  e-12

• p-11

  n-13

  e-11

• p-13

  n-11

  e-13

• none of the above

How many protons, neutrons, and electrons in a stable ion of Oxygen?

• p-8

  n-8

  e-8

• p-8

  n-8

  e-10

• p-10

  n-8

  e-8

• none of the above

What is the electron configuration for an atom of Fluorine?

• 1s²2s²2p⁶

• 1s²2s²2p⁵

• 1s²2s²2p⁴

• 1s²2s²2p⁷

What is the noble gas shortcut for Nb?

• [Kr] 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d³

• [Kr] 5s² 4d³

• [Xe] 5s² 4d³

• [Ar] 4s² 3d¹⁰ 4p⁶ 5s² 4d³