Answer:
electron configuration
Explanation:
The arrangement of electrons in the atomic orbitals of an atom is called the electron configuration. Electron configurations can be determined using a periodic table.
Answer:
<em>Hydrogen.</em>
Explanation:
You've probably seen "
" which is the formula for water. It means that there's 2 hydrogen atoms, and one oxygen atom, in one molecule of water.
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I think the answer is C. An element or compound that cannot be physically separated. Sorry if im wrong.
Answer:
A. increasing the ability of technology, like microscopes, to see even smaller particles
