2024-2025 Fall Final Review

Front

Who was the Greek philosopher who called the smallest particle of matter an 'atom'?

Back

Democritus

Front

How many neutrons does a Sodium-24 isotope have?

Back

13

Front

What is the proper technique for smelling chemicals in a lab?

Back

Wafting

Front

Which element has a lower ionization energy than Scandium (Sc)?

Back

Calcium (Ca)

Front

Which of the following is NOT a part of Dalton's atomic theory?

Back

Atoms are always in motion.

Front

What is an atom?

Back

The smallest unit of an element that retains the properties of that element.

Front

Define ionization energy.

Back

The energy required to remove an electron from an atom or ion.

Front

What is the atomic theory?

Back

A scientific theory that matter is composed of discrete units called atoms.

Front

What is the significance of Dalton's atomic theory?

Back

It laid the foundation for modern chemistry by introducing the concept of atoms.

Front

What is the difference between an isotope and an element?

Back

Isotopes are variants of an element with the same number of protons but different numbers of neutrons.