perfomance and size
The * selector is used to match any element in the hierarchy.
Isotopes (of the same element) have different mass, this is measured by the mass spectrometer
D smallest element in data hierarchy is FIELD.REASON: It (field) is d smallest bit of information found in a record.
Every element has a different number of protons and electrons in each atom, and this amount is what the atomic number tells you.
Every element has a different number of protons and electrons in each atom, and this amount is what the atomic number tells you.
they can distinguish one element from another becasue by the protons and the nuetrons , they can over come almost anything.
An element is anything on the table of elements
Contextual selectors
It can be used to signify anything between physical state at room temperature, whether or not an element is radioactive, or how many valence electrons an element has
By the number of protons
Many chemical elements have a two letter symbol.
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