Explanation: For the elements in column 1,2 and 13-18 the atoms in the same column have the same amount of outermost electrons, called
valence electrons
. Atoms in column 1 (H, Li and Na for example) have 1 valence electron. Column 2 have 2 valence electrons, 13 have 3, 14 have 4 and so on.
What is common about elements in the same group?
Elements in the same group are those that are in a single vertical line from top to bottom. They have the most in common between the two directions.
They share the same number of electrons in their valence subshells
. As a result, they will all have the same chemical reactivity.
What is the most active element in Group 17?
The most active element in Group 17 is
FLUORINE
.
What is Group 11 called?
The Group 11 is composed of copper (Cu), silver (Ag), and gold (Au). Silver and Au belong to the so-called
noble metals
.
What 3 things elements in the same group have in common?
The elements in each group have
the same number of electrons in the outer orbital
. Those outer electrons are also called valence electrons. They are the electrons involved in chemical bonds with other elements. Every element in the first column (group one) has one electron in its outer shell.
What do all Group 2 elements have in common?
The property that is common to all group 2 elements is that they tend
to form ionic bonds by losing electrons making these atoms positive charge
. They are called cations. These elements are beryllium, magnesium, calcium, strontium, and radium.
What is true about elements in the same?
A; Elements in the same family
have similar chemical properties because they have the same number of electron shells
. B; Elements in the same family have similar chemical properties because they have the same number of valence electrons.
What similarity can you observe from the elements in a certain group?
Since elements in
a group have the same number of valence electrons
, they behave similarly in chemistry. An example would be the alkali metals (excepting hydrogen. Hydrogen is in this group only because it has one valence electron. Hydrogen is not a metal).
Which is the rarest element on the Earth?
A team of researchers using the ISOLDE nuclear-physics facility at CERN has measured for the first time the so-called electron affinity of the chemical element
astatine
, the rarest naturally occurring element on Earth.
Why are groups 1 and 17 the most reactive?
Elements in group 17 include fluorine and chlorine. Group 1 of the periodic table includes hydrogen and the alkali metals.
Because they have just one valence electron
, group 1 elements are very reactive.
Are group 18 called noble gases?
Group 8A (or VIIIA)
of the periodic table are the noble gases or inert gases: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). The name comes from the fact that these elements are virtually unreactive towards other elements or compounds.
What are the properties of Group 11?
Characteristics. All Group 11 elements are
relatively inert, corrosion-resistant metals
. Copper and gold are colored. These elements have low electrical resistivity so they are used for wiring.
What are the first 3 noble gases?
Noble gas, any of the seven chemical elements that make up Group 18 (VIIIa) of the periodic table. The elements are
helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and oganesson (Og)
.
What are the most common oxidation states for Group 11 elements?
Although the most important oxidation state for group 11 is
+1
, the elements are relatively unreactive, with reactivity decreasing from Cu to Au.
Which element in Group 2 is the most metallic in character?
Among the group 2 elements,
radium
is known to have the greatest metallic character and it can, therefore, be considered the most metallic group 2 element. This is because the metallic character of elements increases while traversing down a group, and radium is at the bottom of group 2 in the modern periodic table.
What do Element 1 and 2 have in common?
Explanation: For the elements in column 1,2 and 13-18 the atoms in the same column have the same amount of outermost electrons, called
valence electrons
.
