Sadly it has none, but it is simply placed in group 1 with te others
Figuratively speaking, maybe; however, your question isn't defined well enough to answer any more clearly than that.
if by brothers and sisters you mean which elements have similar propertys then you only need to look at the column on the periodic table that copper is in. which would be silver and gold.
23 Hydrogens.
Aluminium, gallium, indium , thallium
There are two hydrogens in H2SO4. So there are six hydrogens in 3H2SO4.
no
He had 11 brothers and sisters.
There are 4 brothers and 3 sister's all up. Assume your one of the brothers - hence you have 3 brothers and 3 sisters. However any one of your sisters, would have 4 brothers and 2 sisters.
he had 2 brothers and 3 sisters
She had 12 brothers and sisters
no she has no brothers or sisters.
yes, 7 brothers and sisters
not have any sisters or brothers
2 brothers and sisters
he had no brothers or sisters
Athena had no brothers or sisters.
brothers and sisters
The Sisters Brothers was created in 2011.