4-titanium,zirconium,rutherfordium,hafnium
depends on which group/family
7 is the exact answer
six
6
Twelve: 6 electrons in 2p6 and 6 electrons in 3p6. No electrons in 4p orbital in ground state, so 4p0, only 4s1 is occupied (4th period, group 1)
6 protons and 6 electrons
6 electrons and 6 protons
6 unpaired electrons
Selenium. As you go across the groups, not counting the transition metals, a valence electron is added.
Twelve: 6 electrons in 2p6 and 6 electrons in 3p6. No electrons in 4p orbital in ground state, so 4p0, only 4s1 is occupied (4th period, group 1)
if its not an ion it has 6
Oxygen is the only nonmetal with 6 Valence Electrons in period 2.
6 electrons
6 protons and 6 electrons
6 electrons and 6 protons
6 unpaired electrons
6 valence electrons
Selenium. As you go across the groups, not counting the transition metals, a valence electron is added.
The period tells you how many energy levels an atom has.
Carbon has 6 electrons as its atomic number is 6.
The element with 55 electrons is Caesium (Cs). Caesium is an Alkali Metal in Period 6 of the Periodic Table. It has the atomic number 55. It has 55 electrons in 6 shells with 1 electron in the outer shell.