Question

an atom with the same number of protons but a different number of neutrons
an atom with a different number of electrons to protons
the number of protons in an atom
the number of protons and neutrons in an atom
all matter is made up of atoms. atoms are the smallest unit of structure of all matter.
atomic number
atomic theory
atomic mass
ion
isotope

Explanation:

To solve this, we match each definition to the correct term:

1. "An atom with the same number of protons but a different number of neutrons" → Isotope (by definition of isotope).
2. "An atom with a different number of electrons to protons" → Ion (ions are charged atoms with unequal electrons and protons).
3. "The number of protons in an atom" → Atomic Number (atomic number = number of protons).
4. "The number of protons and neutrons in an atom" → Atomic Mass (atomic mass ~ sum of protons + neutrons).
5. "All matter is made up of atoms. Atoms are the smallest unit of structure of all matter." → Atomic Theory (this is a core statement of atomic theory).

Matched List:

• An atom with the same number of protons but a different number of neutrons: Isotope
• An atom with a different number of electrons to protons: Ion
• The number of protons in an atom: Atomic Number
• The number of protons and neutrons in an atom: Atomic Mass
• All matter is made up of atoms. Atoms are the smallest unit of structure of all matter: Atomic Theory

Answer:

To solve this, we match each definition to the correct term:

1. "An atom with the same number of protons but a different number of neutrons" → Isotope (by definition of isotope).
2. "An atom with a different number of electrons to protons" → Ion (ions are charged atoms with unequal electrons and protons).
3. "The number of protons in an atom" → Atomic Number (atomic number = number of protons).
4. "The number of protons and neutrons in an atom" → Atomic Mass (atomic mass ~ sum of protons + neutrons).
5. "All matter is made up of atoms. Atoms are the smallest unit of structure of all matter." → Atomic Theory (this is a core statement of atomic theory).

Matched List:

• An atom with the same number of protons but a different number of neutrons: Isotope
• An atom with a different number of electrons to protons: Ion
• The number of protons in an atom: Atomic Number
• The number of protons and neutrons in an atom: Atomic Mass
• All matter is made up of atoms. Atoms are the smallest unit of structure of all matter: Atomic Theory