In nature , atoms of some elements have been identified as 6 X 12
and 6 X14 . These
atoms have similar chemical properties and special properties which find them useful in
various fields .
a) Identify X . What is the name given to such atoms ?
b) Write one more example of such atoms .
c) Name one such atom of an element used in the treatment of cancer .
d) Calculate the number of neutrons in 6 X 12
and 6 X14
Answers
Answer:
Most of the Universe consists of matter and energy. Energy is the capacity to do work. Matter has mass and occupies space. All matter is composed of basic elements that cannot be broken down to substances with different chemical or physical properties. Elements are substances consisting of one type of atom, for example Carbon atoms make up diamond, and also graphite. Pure (24K) gold is composed of only one type of atom, gold atoms. Atoms are the smallest particle into which an element can be divided. The ancient Greek philosophers developed the concept of the atom, although they considered it the fundamental particle that could not be broken down. Since the work of Enrico Fermi and his colleagues, we now know that the atom is divisible, often releasing tremendous energies as in nuclear explosions or (in a controlled fashion in) thermonuclear power plants.