Comprehensive Atomic and Mass Number Data for the First Thirty Elements

Evaluation of Primary Elements and Initial Atomic Groups

The fundamental structure of chemical elements is categorized by specific numerical identifiers, primarily the atomic number and the mass number, which is referred to in this dataset under the heading KI MassASTER Number. The sequence begins with Hydrogen, identified by the symbol $H$. Hydrogen possesses an atomic number of $1$ and a mass number (KI MassASTER Number) of $1$. This is followed by Helium, which carries the symbol $He$. Helium is defined by an atomic number of $2$ and a mass number of $4$.

Moving into the early metals and metalloids, Lithium is the third element, denoted by the symbol $Li$. Its atomic number is recorded as $3$, while its mass number is $7$. Beryllium follows as the fourth element with the symbol $Be$. It is characterized by an atomic number of $4$ and a mass number of $9$. Boron, the fifth element in the sequence, is symbolized by $B$, holding an atomic number of $5$ and a mass number of $11$.

Atomic Data for Period 2 Non-Metals and Reactive Gases

The sequence continues with Carbon, a primary chemical building block, which is assigned the symbol $C$. Carbon sits at atomic number $6$ and has a mass number of $12$. Nitrogen is represented by the symbol $N$, possessing an atomic number of $7$ and a mass number of $14$. Oxygen is listed next; according to the provided data, it is identified with the symbol $0$ (zero). Oxygen has an atomic number of $8$ and a mass number of $16$.

Fluorine is the ninth element in the series, symbolized by $F$. It holds an atomic number of $9$ and a mass number of $19$. Rounding out the first ten elements is Neon, a noble gas with the symbol $Ne$. Neon is defined by an atomic number of $10$ and a mass number of $20$.

Elemental Properties of Period 3 Elements

The eleventh element is Sodium, which uses the symbol $Na$. Its atomic number is $11$ and its mass number is $23$. Magnesium follows with the symbol $Mg$, an atomic number of $12$, and a mass number of $24$. Aluminum represents the thirteenth element, denoted by the symbol $Al$, with an atomic number of $13$ and a mass number of $27$. Silicon is the fourteenth element, using the symbol $Si$. It has an atomic number of $14$ and a mass number of $28$.

Phosphorus is characterized by the symbol $P$ and an atomic number of $15$, with a corresponding mass number of $31$. Sulfur follows with the symbol $S$, an atomic number of $16$, and a mass number of $32$. Chlorine, identified by the symbol $CI$, is the seventeenth element. It has an atomic number of $17$ and a mass number of $35.5$. Argon, the eighteenth element, is symbolized by $Ar$ and possesses an atomic number of $18$ with a mass number of $40$.

Transition into Period 4 and Early Transition Metals

Potassium marks the start of the next series at atomic number $19$ and is symbolized by $K$. Its mass number is $39$. Calcium follows at atomic number $20$ with the symbol $Ca$ and a mass number recorded as $40.1$. Scandium, the twenty-first element, uses the symbol $Sc$ and has an atomic number of $21$ and a mass number of $45$. Titanium is the twenty-second element, symbolized as $Ti$, with an atomic number of $22$ and a mass number of $48$. Vanadium, denoted by $V$, sits at atomic number $23$ with a mass number of $51$.

Chromium is represented by the symbol $Cr$ and carries an atomic number of $24$ and a mass number of $52$. Manganese is the twenty-fifth element, symbolized by $Mn$, with an atomic number of $25$ and a mass number of $55$. Iron follows as the twenty-sixth element with the symbol $Fe$. It is defined by an atomic number of $26$ and a mass number of $56$.

Concluding Atomic Data for Transition Elements and Zinc

Cobalt is the twenty-seventh element in the collection, symbolized by $Co$. It has an atomic number of $27$ and a mass number of $58.9$. Nickel follows at atomic number $28$ with the symbol $Ni$ and a mass number of $58.7$. Note that Cobalt has a higher mass number than Nickel in this sequence despite having a lower atomic number. Copper is the twenty-ninth element, symbolized by $Cu$. It is assigned an atomic number of $29$ and a mass number of $68.5$. Finally, the thirtieth element is Zinc, represented by the symbol $Zn$. Zinc possesses an atomic number of $30$ and a mass number of $65$.