This is not a good question, because it's really unclear what "similar" means.
They have roughly the same density. (Yes) Their chemical reactions are somewhat different. (No) One allotrope of arsenic is grey and metallic in appearance and could reasonably be mistaken for germanium in a cursory visual examination. (Yes) Arsenic sublimes, germanium melts. (No) And so on.
In order to answer the question, you'd need to define specifically what your criteria for considering things "similar" is.
There is not one but there are two metalloids in Period 4 of the periodic table. They are germanium and arsenic. There is a link below to the Wikipedia post on the metalloids so you can have a look at them.
Boron and arsenic are both metalloids.
Metalloid, or semi metal is a term used in chemistry when classifying the chemical elements. On the basis of their general physical and chemical properties, nearly every element in the periodic table can be termed either a metal or a nonmetal. However, a few elements with intermediate properties are referred to as metalloids. They are sometimes called (and confused with) semiconductors and semimetals.The following elements are generally considered metalloids:Boron (B)Silicon (Si)Germanium (Ge)Arsenic (As)Antimony (Sb)Tellurium (Te)Polonium (Po)Astatine (At)Inclusion of polonium is somewhat academic because all its isotopes are radioactive.
The elements in the same group as arsenic are nitrogen, phosphorous, antimony, and bismuth. Also, arsenic is a metalloid, a classification which includes boron, silicon, germanium, antimony, tellurium, and polonium. These are elements with intermediate or mixed properties between metals and non-metals.
The metalloids are Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium, and Polonium.
If it were possible to add a proton to atoms, then the germanium would turn into arsenic.
The Elements are: Boron(B), Silicon(Si), Germanium(Ge), Arsenic(As), Antimony(Sb), Tellurium(Te), and Astatine(At) all the metalloids are:Boron (B)Silicon (Si)Germanium (Ge)Arsenic (As)Antimony (Sb)Tellurium (Te)Polonium (Po)
The seven metalloid's are: boron, silicon, germanium, arsenic, selenium,antimony, and tellurium.http://www.bookrags.com/research/metalloids-woc/ANSWERED BY: NICK-NACK
The six commonly recognized metalloids are boron, silicon, germanium, arsenic, antimony, and tellurium.
Metalloids are: silicon, germanium, arsenic, antimony, tellurium, boron.
boron, silicon, germanium, arsenic, antimony and tellurium.
Boron, silicon, germanium, arsenic, antimony, and tellurium are the metalloids.