What are the number of protons, neutrons and electrons in the this isotopes

89

Sr

38

Which type of chemical bond involves the sharing of valence electrons between two atoms?

When using the ideal gas constant value, R = 0.0821, in an ideal gas law calculation, the units of volume may be expressed in milliliters or liters. TRUE FALSE

The factor being measured in an experiment is the

How can you use the periodic table to find the number of protons in one atom of an element? The number of protons is the same as the atomic number of the element. The number of protons is the same as the atomic weight of the element.

Two of earth's plates pressed together for many millions of years. What happened if they pressed together in a place where oceanic plate material meets continental plate material?

The density of water is 1.0 g/cm3 will rubbing alcohol float with a density of 0.81 g/cm3

Write an equation that shows the formation of the phosphide ion from a neutral phosphorus atom.

Which of the following terms is defined by the measure of mass per unit of volume? gravity density weight acceleration

Select the lon. O NO₂ H2SO4 O A3

True or False: A Solar eclipse occurs when Earth casts a shadow on the Moon.