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Horizontal
1. Unión de dos o mas elementos
2. Electrón en el último nivel
3. Sustancia pura representada en la tabla
periódica
Vertical
1. Enlace que comparten electrones
2. Subpartícula con carga negativa
3. Elemento esencial para la vida
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3
Pronar un acróstico con la nalabra ELECTRÓN

do yall know the answer?

the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.