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The Ionisation energy increases going down a period and across a group
The number of electrons in an element
the relative attraction of an atom for shared pairs of electrons in a covalent bond.
The electronic conductivity of an element
The level of negativity of an element in an ionic bond
Who contributed to the advancement of knowledge on the periodic table
Which of these are groups in the periodic table?
Define Atomic Number?
The number of atoms in an element
The number of electrons an atom uses in a chemical reaction
The number of protons in the nucleus of an atom
The number of protons and neutrons in the nucleus of an atom
Noble gases are the most reactive of the groups
Second ionisation energy of an atom is usually higher than the first ionisation energy of an atom
Define Atomic mass number
The number of protons and neutrons in the nucleus of an atom of that element
The number of protons in the nucleus of an element
The number of electrons in a covalent bond of the element
The mass of the nucleus of an element
atoms with the same number of protons and neutrons
Isotopes are atoms of the same element that have different mass numbers due to different numbers of neutrons in the nucleus
Atoms of the same element with a different number of protons and electrons
Atoms of an element which have no neutrons in the nucleus
An increase in atomic radius will lead to which of these?
increase in ionisation energy
increase in reactivity
decrease in reactivity
decrease in ionisation energy