Answer:
Sodium has 11 protons and Magnesium has 12. The way that the periodic table is set up doesn't allow for any elements to be in between. The element would have to have 11.5 protons, which is impossible
Answer:
Spectroscopy
Explanation:
They can determine its composition based on these wavelengths. The most common method astronomers use to determine the composition of stars, planets, and other objects is spectroscopy
The population tha increases the amount of soil nutrients available to plants is D) bees that help spread pollen from one plant to another.
Answer:
acids or bases can be tested
by chemical indicators
<u>Answer:</u> The atomic symbol of the given element is
<u>Explanation:</u>
The general isotopic representation of an element is given as:
where,
Z represents the atomic number of the element
A represents the mass number of the element
X represents the symbol of an element
For the given isotope: 130-iodine
Mass number = 130
Atomic number = 53
Hence, the atomic symbol of the given element is