What element contains 15 neutrons and 13 protons?

If element x has 63 protons how many electrons does it have?

What element is white, shiny, metallic solid, reacts slightly to air, density is 1.55

Is PO4^-3 polar, non-polar, or ionic?

Suppose you increase your walking speed from 4 m/s to 13 m/s in a period of 1 s. What is your acceleration? m/s2

Which is a major disadvantage of using wind power? the environmental waste damage to local ecosystems greenhouse gases are released large amounts of land are required

What type of material can make up a mudflow? a. trees b. boulders c. soil d. all of the above

What is bedrock layer

The number of neutrons in the nucleus of an atom can be calculated by 1. Adding together the numbers of electrons and protons 2. Subtracting the number of protons from the number of electrons 3.

Chemical or physical properties? titanium is less dense than water

Choose the element that would be the most reactive of the three. A. K c. Na b. Fr