Answer:
it is incomplete, is this te entire tree
Explanation:
Answer: Hydrogen that is not used in balloons because hydrogen burns very easily.
pls mark brainliest
Atoms have no electric charge because the protons and electrons "cancel out" each others charges. Neutrons have no charge. What is the atomic number of an element? The atomic number is the number of protons in the atom's nucleus.
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It’s x200 plus 300 that’s why it is that answer