Hydrogen possesses fewer valence electrons than lithium. true false the lewis dot structure for aluminum includes the symbol, "al," and a total of three dots around the symbol. true false an atom's electron affinity value indicates how favorable it is for the atom to form a negatively charged ion. true false the name of the ion p3- is phosphoride ion. true false

Hydrogen possesses fewer valence electrons than lithium.

False.

Explanation: H and Li are both in Group 1. They both have one valence electron.

The Lewis dot structure for aluminum includes the symbol "Al" and a total of three dots around the symbol.

True.

Explanation: The Lewis structure for Al is ·Al:

An atom's electron affinity value indicates how favorable it is for the atom to form a negatively charged ion.

True.

The electron affinity is the energy absorbed or released when a neutral atom gains an electron. The more energy that is released, the more stable the ion,

The name of the ion P³⁻ is phosphoride ion.

False

Explanation: The name of P³⁻ is phosphide. The stem name of phosphorus in binary ionic compounds is “phosph-.”

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

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explanation: