Group 3 is the first group of transition metals in the periodic table. This group is closely related to the rare-earth elements. It contains the four elements scandium (Sc), yttrium (Y), lutetium (Lu), and lawrencium (Lr). The group is also called the scandium group or scandium family after its lightest member.

2024年9月1日 · The elements lying from group 3 to 12 on the periodic table are named as Transition metals and Inner transition metals. The elements in the two bottom rows of the periodic table are also included in these groups.

2023年6月30日 · The observed trends in the properties of the group 3 elements are similar to those of groups 1 and 2. Due to their ns 2 (n − 1)d 1 valence electron configurations, the chemistry of all four elements is dominated by the +3 oxidation state formed by losing all three valence electrons.

Group 3 was the first to waive the requirement of a test pilot background, though military jet fighter aircraft experience was substituted. This applied to Buzz Aldrin, Bill Anders, Gene Cernan, Roger Chaffee, Walter Cunningham and Rusty Schweickart; all the others were test pilots. On average, its members were younger, slightly taller and ...

2023年6月30日 · In keeping with their highly electropositive character, the group 3 metals react with water to produce the metal hydroxide and hydrogen gas: \[2M_{(s)} + 6H_2O_{(l)} \rightarrow 2M(OH)_{3(s)} + 3H_{2(g)}\tag{1.1.1} \]

2020年9月24日 · Group 3 is the least studied of the groups and series of the periodic table, in terms of its composition and location. Rather than obsessing over the minutiae of the individual properties of lanthanum and lutetium, I advocate taking more of a helicopter view.

2021年6月23日 · The lanthanides and actinides, located below the main table, all fit within group 3. There are 18 element groups. Elements in the same group share common chemical and physical properties.