<span>side-by-side alignment of homologous chromosomes</span>
the answer is <span>Astatine is one period further than tellurium, meaning it has an extra shell. Therefore, the At atom will be bigger than the Te atom. </span>
Answer:
Ionic bonds transfer electrons and covalent bonds share electrons.
Explanation:
Ionic bonds tend to transfer electrons completely. Take NaCl for example.
Cl has 7 valence electrons.
Na has 1 valence electron.
To stabilize themselves, either with a full 8 shells or full outer shell, Cl wants 1 electron and Na wants to lose 1 electron. So when NaCl forms, Na donates its electron to Cl.
In a covalent bond, the electrons are shared. Water can be used as an example. The electrons in water usually are around the oxygen, but sometimes it is around the hydrogens.
