Why hydrogen is placed in the first group?

In the modern periodic table, hydrogen(H) is placed in group I and this is mainly because it resembles certain properties of group I elements, such as: Hydrogen acts as a strong reducing agent like other alkali metals. The outer electronic configuration of hydrogen (1s1) is similar to group I elements.

Why the position of hydrogen can be placed either in group 1 or Group 17 in the first period?

The reason why the hydrogen can be placed in both group 1 and group 17 is that it resembles Alkali metals in some of its properties like it can easily form cations so, it can be placed in Group 1 of periodic table but it also resembles Halogens in its properties like it forms which is true property of halogen that is …

Why should hydrogen be placed with halogens?

Halogens possess electronic configuration of the type ns2 np5 and can easily gain an electron to attain stable octet configuration similar to that of noble gases . That is why hydrogen has chemical properties similar to those of halogens because they possess the same type of electronic configuration .

Why hydrogen behaves both as a halogen and as an alkali metal?

Hydrogen resembles alkali metal because it has 1 free electrons in it’s outermost shell It is an electropositive element . Hydrogen resembles halogens because it requires only 1 electron to complete it’s duplet rule and become stable like halogens. It also forms diatomic moleclues like halogens.

Why is hydrogen in group 1 if it is not a metal?

Hydrogen is a nonmetal and is placed above group in the periodic table because it has ns1 electron configuration like the alkali metals. However, it varies greatly from the alkali metals as it forms cations (H+) more reluctantly than the other alkali metals.

Why is hydrogen placed in the reactivity series?

Despite being a non-metal, hydrogen is often included in the reactivity series since it helps compare the reactivities of the metals. The metals placed above hydrogen in the series can displace it from acids such as HCl and H2SO4 (since they are more reactive).

What do you think should hydrogen be placed in the group 17 of halogens or Group 1 of alkali metals in the modern periodic table?

Hydrogen’s atomic number is 1,hence there is only 1 electron in outermost shell. So to be stable Hydrogen loses its electron and makes 1 positive charge. Therefore, instead keeping Hydrogen in group of halogens it should be in group 1st that is alkali metals group.

Why is hydrogen placed above the alkali metals?

Hydrogen is placed above group in the periodic table because it has ns1 electron configuration like the alkali metals. However, it varies greatly from the alkali metals as it forms cations (H+) more reluctantly than the other alkali metals.

What are the reasons for placing hydrogen along with alkali metals?

Hydrogen placement above alkali metals is due to formation of , configuration similar to alkali metals. Hydrogen placement above halogens is due to formation of metal hydrides similar to metal halides, having the need of 1 to have closest noble gas configuration (He).

Why is hydrogen placed at the top of Group 1?

Hydrogen has one electron in 1s orbital so it can loose that e- to form H+ cation like alkali metals so it is placed above group1.also it can form H- (hydride) like the halogens.so it can also be placed with them.generally H is observed to exist as H+ rather than H- so it is generally placed over grp1.

What group is hydrogen in on the periodic table?

Hydrogen is a weird element you can make the case for it being placed in both group 1 with the alkali-metals or in group 7 with the halogens. That is Hydrogen is a weird group 1 & 7 hybrid element. This means you got 3 choices of were to put it on a periodic table, group 1 group 7 or floating off by itself.

What is the difference between hydride and halogen?

(2)electronegative character:-halogens have a strong tendency to gain one electron to form halide ions ..in a similar way hydrogen shows some tendency to gain one electron to form hydride ion .. (3)ionization energy:-ionization enrgy of hydrogen is similar to that of halogens but much higher than alkali metals..

What is so special about hydhydrogen?

Hydrogen is special, in a sense that it behaves both as group I and group 17 (halogen) because it can accept as well as reject an electron to attain stable configuration. That being said, it has more tendency to reject an electron like other group I elements like Na, K and others.