Cards in this guide (7)
Which of the following elements tend to be radioactive
Ra and Ac
Pu and Th
Am and U
What is a bond that is an electrostatic attraction between atoms of opposite charges
Alpha decay and beta decay are two forms of decay that cause transmutation
What does the sun give
The sun converts mass into energy and releases them.
Which law of thermodynamics states that the heat engine cannot be completely efficient
That is a consequence of the second and third laws of
thermodynamics.
What pieces of information is not found in each square on the periodic table
There is little information present in square of element.It does
not contain information about atomic radius,melting point and other
properties.It does not tell about the state of element.
Which produces the most energy