Zeekedohan451 Zeekedohan451

03-11-2022
Chemistry

Answered

The time it takes for half of a sample of U-238 to decay and become Pb-
206 is 4.5 billion years. Which process accounts for this change?
O Fussion
O Penetrating power
O Radioactive decay

Answer :

Other Questions

A newly discovered element, X, has been found to have the isotopes listed below (with masses and % abundances). Calculate the average atomic mass. ISOTOPE MASS

38 Provide the correct name for this molecule:

3 plete ut of 1 question At 20 C, chloroform (CHCI3) has a density of 1.489 g/mL. What is the mass of 7.52 mL of chloroform at 20 C? Select one: a. 0.198 g 13.4

Question Which chemical formula shows a covalent compound? Responses HBr CO2 MgO NaCl

Which of the following elements are likely to have electrons in the 3p sub-level? Si O As C

1. A gas buret holds 27.00 mL of nitrogen gas at 776.31 mm Hg and 23.45oC. If the temperature drops to 18.66oC, what will be the resulting volume in milliliter

Select the correct shorthand version for the electron configuration for silicon, which has 14 electrons. O Ar4s³3d¹04p¹ O Ar4s² O He2s22p638² O Ne3s²3p² O Kr5s²

41 Provide the correct name for this compound.

8 Provide the correct name for this molecule: