Answer:
Its nucleus
Explanation:
also contains two neutrons. Since 2 + 2 = 4, we know that the mass number of the helium atom is 4. Finally, the helium atom also contains two electrons since the number of electrons must equal the number of protons.
The correct answer is A
hope this helps :)
Hydrogen fuel cells burn with Oxygen and produces Water.
It is commonly used to produce electricity.
Answer:
Hello! Lithium is a Alkali metal, and is located on the left of the periodic table, right below Hydrogen (H), and right above Sodium (NA) .
Fluorine is located on the right of the table, next to Oxygen (O) and Neon (NE), and right above Chlorine (Cl).
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Answer:
ionic bonds
Explanation:
ionic bonds result from the mutual attraction between oppositely charged ions. They tend to be stronger than covalent bonds due to the coulombic attraction between ions of opposite charges.
