What is the element symbol for the element with the atomic mass of 178.5

The partial electron configuration of an atom with 11 electrons is shown. 1s22s22p6X Which of the following does X represent?

Children's reactions to divorce often include which of the following groups of behaviors?

For the reaction 5 o2 (g) + 4 nh3 (g)  4 no (g) + 6 h2o (g) if nh3 is being consumed at a rate of 0.50 m•s - 1, at what rate is h2o being formed?

Draw the structure of 6-bromo-2,3-dimethyl-2-hexene (also known as 6-bromo-2,3-dimethylhex-2-ene).

Why is it advantageous to produce plutonium - 239

Which has the highest viscory? Milk? Water? Orange juice?

What was venter's comtributionto science?

How many atoms are in 151 g of calcium?

Which statements about the formation of the solar system are true and in a correct order? A. A black hole collapsed to form the sun; small planetary objects formed; small planetary objects collided with each other to form larger objects. B.

Which is an important step in the alternate method for balancing equations in redox reactions? a) indicating the types of bonds found in the molecules. b) determining the speed at which reactions take place.