GC - REVIEW Unit 3 Atom & Periodic Table

Front

List the waves in order of increasing wavelengths in the electromagnetic spectrum.

Back

gamma rays, x-ray, ultraviolet waves, infrared, microwaves, and radio waves.

Front

What model of the atom was used as a result of JJ Thomson's cathode ray experiments?

Back

Plum pudding model.

Front

How many protons, neutrons, and electrons does Mn²⁺ have?

Back

25 p⁺, 23 e⁻, 30 n⁰.

Front

Anions are _______ that form ____________ ions and __________ electrons.

Back

nonmetals, negative, gain.

Front

Which two factors of electromagnetic radiation have an inverse relationship?

Back

frequency and wavelength.

Front

Define electromagnetic spectrum.

Back

The range of all types of electromagnetic radiation, including gamma rays, x-rays, ultraviolet, visible light, infrared, microwaves, and radio waves.

Front

What is the charge of an electron?

Back

-1 (negative charge).

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is the significance of the plum pudding model?

Back

It was one of the first models to suggest that atoms are made of smaller particles (electrons) embedded in a positively charged 'soup'.

Front

What is the relationship between energy and frequency in electromagnetic waves?

Back

Energy is directly proportional to frequency; as frequency increases, energy increases.