Identify the elements that correspond to the following atomic numbers. Label each as either a no

Identify the elements that correspond to the following...

Key Concepts

Actinide Metals

Actinide metals are a series of elements that occupy a separate row at the bottom of the periodic table. These elements are characterized by their radioactivity and the filling of the 5f electron orbitals. Due to their often unstable nature and complex electron configurations, they are distinguished by their unique nuclear properties and behavior.

Transition Metals

Transition metals are elements found in the central block (Groups 3-12) of the periodic table. They are characterized by their ability to form various oxidation states and coordination complexes, and they often exhibit properties like high melting points and malleability. Their unique electron configurations play a key role in their chemical behavior and applications.

Alkaline Earth Metals

Alkaline earth metals, found in Group 2 of the periodic table, have similar characteristic properties including moderate reactivity and two electrons in their outer shell. Their ability to form divalent cations makes them important in various chemical reactions, and understanding their properties is essential for proper elemental classification.

Alkali Metals

Alkali metals are the elements in Group 1 of the periodic table, known for their high reactivity, softness, and low melting points. They readily lose an electron to form cations, which leads to vigorous chemical reactions, especially with water. Their classification is crucial for predicting their reactivity and properties.

Lanthanide Metals

Lanthanide metals constitute a series of 15 elements in the periodic table, typically shown in a separate row. They are known for their high electrical conductivity, magnetic properties, and use in various high-tech applications. Their electron configurations involve filling of the 4f orbitals, which contributes to their unique chemical and physical properties.

Noble Gases

Noble gases are elements located in Group 18 of the periodic table. They are known for their very low chemical reactivity due to having a complete valence electron shell, making them useful in applications where inertness is required. Understanding their position helps in differentiating them from more reactive elements.

Element Groups

Element groups refer to the columns or families in the periodic table where elements have similar chemical and physical properties. These classifications, such as noble gases, halogens, alkali metals, and others, allow chemists to predict behavior and reactivity, which is essential for labeling or categorizing elements based on their trends.

Periodic Table

The periodic table is an organized chart of all known chemical elements arranged in order of increasing atomic number. Its layout highlights recurring trends in chemical behavior and properties, which helps in understanding how elements interact and are classified into various groups based on similar properties.

Atomic Number

The atomic number is a fundamental property of elements denoted by the number of protons in the nucleus. It determines the identity of an element and its position in the periodic table, making it a crucial concept for linking an element to its chemical properties and group classification.

Halogens

Halogens are a group of highly reactive nonmetals found in Group 17 of the periodic table. They are characterized by their tendency to gain an electron to achieve a full outer shell and are commonly involved in forming salts when reacting with metals. Their distinct chemical behavior makes them an important category in elemental classification.

Transcript

00:02 So this video, we're gonna talk about question 60 from doctor, to which says, identify the elements corresponding to a following atomic numbers label.

00:10 Each is either a halogen, an alkali metal, an alkaline earth metal, a transition metal, a lamp tonight, metal or anak tonight metal.

00:18 So in a were given an atomic number of 70.

00:21 It's a little flick on the periodic table for an atomic number of 17.

00:25 So that's over here on the right.

00:27 In the second to last column or a group of the periodic table group 17 and atomic number 17 corresponds to chlorine s o chlorine.

00:37 All of the elements in this column of the periodic table are hella jin's, um so quartering is a halogen.

00:44 So atomic number 17 is corinne, and that's a halogen.

00:47 And b.

00:48 We're asked about an atomic number of four, so an atomic number of four is over here on the left hand side of the periodic table.

00:55 So that's beryllium.

00:57 So beryllium occurs in the second column, a group of the periodic table in the first column.

01:02 We have our alkali metals, but in the second column we have are alkaline earth metals.

01:06 So an atomic number four corresponds to beryllium, and that's an alkaline earth metal.

01:12 And see, we're asked about an atomic number of 63.

01:15 So atomic number of 63 actually occurs.

01:18 Wait on here.

01:18 The bomb of the periodic table...

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