Across the period
Explanation:
Among the element of the main group, the first ionization energy increases across the period.
- The energy required to remove an electron from an atom is called ionization energy.
- The first ionization energy is the energy needed to remove the most loosely bound electron of an atom in the gas phase.
- The ionization energy measures the readiness of an atom to lose an electron.
The magnitude of the ionization energy depends on nuclear charge, atomic radius, sublevel accomodating the electron and the special stability of filled and half-filled sublevels.
Generally, ionization energy increases progressively from left to right due to the decreasing atomic radii.
Down a group, it decreases because atomic radii is increasing
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Ionization energy brainly.com/question/1971327
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Answer:
Shell or orbitals
Explanation:
Electrons are the smallest of the three particles that make up atoms. Electrons are found in shells or orbitals that surround the nucleus of an atom
Answer: One formula unit of NaCl consists of one cation, whose chemical symbol is and one anion whose chemical symbol is
Explanation:
For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.
The cation is formed by the metal sodium which forms and the anion is formed by non metal chlorine which forms .
For a formula unit of sodium chloride, the charges have to be balanced , thus the valencies of ions are exchanged and the neutral compound result. Thus
and combine to form neutral
Answer:
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