If an isotope of an element has 18 neutrons and a mass number of 35, how many electrons must it have?

Which of the following actions describes nuclear fusion A joining of two atoms by a chemical bond B splitting of a big nucleus C joining of small nuclei to produce bigger nuclei D sharing of electrons between two uranium atoms

How can you use a fossil to indemnify the environment where the organism lived

7. A perfect cube has a width of 2 cm. What is the cube's volume? Show your work!

When drawing the Lewis structure for a molecule, after drawing the skeletal structure and distributing all of the electrons around the the terminal atoms, what actions should be taken if the central atom does not have a complete octet

You have left the carton of milk out of the refrigerator overnight and it has spoiled. This is an example of a A. Physical property O B. Physical change OC. Chemical property D. Chemical change Reset Selection

Which object (s) formed last in our solar system? the Sun the solar nebula the inner planets the planetesimals

How many grams of sodium are represented by the symbol Na?

Drag the missing word into place I saw a shooting star. My teacher said that the streak of light was a (n) asteroid atmosphere meteor

What can you tell about the rate of the two reactions shown in the graph?

You have 40 g of a radioisotope. If the half-life of this radioisotope is 4 days, how many grams will remain after 12 days?