Silver is a metal therefore it loses an electron when it reacts to form Ag+
When atoms lose and gain electrons, an ionic bond will form. When atoms share electrons, a covalent bond will form.
Radium lose two electrons, the cation is Ra2+.
To form a molecule, atoms can share, lose, and gain electrons
This depends on the electronegativity of atoms.
A completely filled shell of electrons has 8 electrons.
Covalent bonds do not gain or lose electrons, but rather share electrons.
When atoms lose and gain electrons, an ionic bond will form. When atoms share electrons, a covalent bond will form.
It gains
Radium lose two electrons, the cation is Ra2+.
they share electrons
To form a molecule, atoms can share, lose, and gain electrons
yes
Some atoms lose electrons, some gain electrons, and some share electrons depending on what elements are involved and what compound is forming.
Atoms gain, share, or lose electrons to try and become more stable. Atoms will gain, share, or lose electrons until they have a stable 8 valence electrons in their outer shell which is called an octet, which is stated in the octet rule. See the attached links for information on the octet rule.
silicon prefers to share electrons forming covalent bonds
This depends on the electronegativity of atoms.
A completely filled shell of electrons has 8 electrons.