Bakit mahalaga ang paghahanda ng pambansang badyet sa isang taon?

Which describes an atom that has fewer neutrons than protons and more electrons than protons?

Eva8 [605]

Answer:

Option d is correct = Negative ion

Explanation:

We know that an atom consist of electrons, protons and neutrons. Neutrons and protons are present inside the nucleus while electrons are present out side the nucleus. Electron has a negative charge and is written as e⁻. The mass of electron is 9.10938356×10⁻³¹ Kg . While mass of proton and neutron is 1.672623×10⁻²⁷Kg and 1.674929×10⁻²⁷ Kg respectively.

Symbol of proton= P⁺

Symbol of neutron= n⁰

The number of electron or number of protons are called atomic number while mass number of an atom is sum of protons and neutrons. The umber of protons and electrons are always equal to make the atom electrically neutral and when an atom loses its valance electron the number of protons increases and thus positive charge increased and atom form cation.

When an atom gain electron negative charge increase because of more number of electron thus atom form negative ion or anion. For example,

Anion formation:

X + e⁻ → X⁻

Cation formation:

X → X⁺ + e⁻

Thus option d is correct option.

5 0

4 years ago

In a famous experiment , positively charge particles were aimed at a thin sheet of gold foil. The result of this experiment were

denis-greek [22]

The result of Rutherford's gold foil experiment was that most of the particles went straight through the foil without being deflected.

However, a few of the particles were deflected by relatively large angles.