If you mean the elements in their normal forms, F and Cl are gases, Br is a liquid, I is a solid.
If you mean their ligand hard/soft qualities as halide ions:-
the lighter ones are hard, Br- and I- soft
Selenium is a non-metal element, so it does not have a distinct color in its pure form. However, when combined with other elements in compounds, selenium can exhibit colors ranging from red to black, depending on the specific compound.
Plastic can be soft or hard, depending on its composition and processing. Some plastics are engineered to be flexible and soft, while others are rigid and hard.
It is a limestone, hard.
Its hard
well It Is hard because all rocks are hard
Hard
it is hard and sometimes soft
hard
soft you can bend and hard you can not
Selenium is a non-metal element, so it does not have a distinct color in its pure form. However, when combined with other elements in compounds, selenium can exhibit colors ranging from red to black, depending on the specific compound.
soft
Soft
"Treated wood can be soft or hard." But, generally what is bought from a lumberyard is soft.
is larch wood soft or hard wood
one is soft and the other is hard
Solid is hard. It is nt soft.
Cheese. There are four main types of cheese: soft, semi-soft, semi-hard, and hard.