First of all, don't ask us the questions in your homework. Secondly, you should be able to tell which three are elements and which is a compound. If not, you probably shouldn't be taking a chemistry class.
Uranium, boron, hydrogen are chemical elements. Salt (NaCl) is a chemical compound.
B (boron) apex
Hydrogen is generally considered the most anomalous element, because its most abundant isotope contains no neutrons and its ion contain no electrons.
It is just named the boron group. The elements in the group are boron (B), aluminum (Al), gallium (Ga), indium (In), thallium (Tl), and unumtrium (Uut) (scienticially prepared). The boron group all have 3 electrons in their valence levels making them an unstable group.
Boron is the only element in group 13 that is a metalloid, meaning it shares properties of both metals and nonmetals. It has a unique structure due to its small atomic size and high ionization energy compared to its group members. Boron also forms covalent compounds instead of ionic compounds like other group 13 elements.
Uranium, boron, hydrogen are chemical elements. Salt (NaCl) is a chemical compound.
The element in the same group as Al is boron (B). They both belong to Group 13 in the periodic table.
Boron's family has no specific name like the Halogens or the Alkali metals. It is simply the Boron Family.
Uranium belongs to the actinide group of elements.
No!
B (boron) apex
Either IA (Hydrogen) or IIIA (Boron)
Boron is in the 13th group, which is called the Boron Group.
No, hydrogen does not belong to group 7 of the periodic table. It is placed in group 1 since it has 1 electron in its outer shell.
because hydrogen is in the form of gas and thus we can conclude that it is a non- metal
The boron family includes elements such as boron and aluminum that react with oxygen to form oxides. They also react with acids to release hydrogen gas. Additionally, some members of the boron family can react with water to form hydroxides.
Hydrogen's properties differ so much from other elements that it can't be grouped.