Math

QuestionWrite the symbol with mass and atomic numbers for atoms with: 28 protons, 30 neutrons; 22 protons, 21 neutrons; 15 electrons, 19 neutrons.

Studdy Solution

STEP 1

Assumptions1. The number of protons in an atom is equal to its atomic number. . The mass number of an atom is the sum of the of protons and neutrons.
3. In a neutral atom, the number of electrons is equal to the number of protons.

STEP 2

We will use the standard notation for atomic symbols, which isXZA\text{X}^{A}_{Z}Where X is the atomic symbol, Z is the atomic number (number of protons), and A is the mass number (number of protons + number of neutrons).

STEP 3

For the atom that contains28 protons and30 neutrons, the atomic number (Z) is28 and the mass number (A) is28 +30 =58.

STEP 4

The atomic symbol for the atom with28 protons is Ni (Nickel). So, the complete symbol for the atom isNi2858\text{Ni}^{58}_{28}

STEP 5

For the atom that contains22 protons and21 neutrons, the atomic number (Z) is22 and the mass number (A) is22 +21 =43.

STEP 6

The atomic symbol for the atom with22 protons is Ti (Titanium). So, the complete symbol for the atom isTi2243\text{Ti}^{43}_{22}

STEP 7

For the atom that contains15 electrons and19 neutrons, assuming it's a neutral atom, the atomic number (Z) is15 (equal to the number of electrons) and the mass number (A) is15 +19 =34.

STEP 8

The atomic symbol for the atom with15 protons is (Phosphorus). So, the complete symbol for the atom is1534\text{}^{34}_{15}So, the complete symbols for the atoms are Ni2858\text{Ni}^{58}_{28}, Ti2243\text{Ti}^{43}_{22}, and 1534\text{}^{34}_{15}.

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