Unit 1 Review

What is the isotope name of ⁶³₂₉Cu?

When an element has a different number of neutrons, it forms a(n)

Across a period

How many protons and electrons does Mn⁷⁺ have?

Proposed the idea that electrons are most likely to be found in 'clouds' or orbitals

What is the atomic mass of an element with 24 protons and 30 neutrons?

¹⁴C and ¹³C are

By passing alpha particles through gold foil, Rutherford was able to prove the existence of

Ni²⁺ has how many protons, neutrons, and electrons?

[Ne]3s²3p⁴ is the abbreviated configuration of

What two factors affect the coulombic attraction in an atom?

Credited with the discovery of neutrons

Why does coulombic attraction decrease down a group?

Which of the following EMR has the highest frequency and shortest wavelength?

How many neutrons does Carbon-14 have?

Calculate the average atomic mass

How many protons are in ²³⁷U?

Why do electrons emit light?

How many valence electrons does oxygen have?

In a neutral atom

Which of the following EMR has the lowest frequency and longest wavelength?

Which element has the lowest force of attraction between the protons and the outermost electrons?

When an element has a different number of electrons, it forms a(n)

How many electrons does Mg²⁺ have?

Gave us the four points of the Atomic Theory

With cathode ray tube, beam of particles & magnets, Thomson was able to prove the existence of

How is the atomic mass determined?

Which element has the greatest force of attraction between the protons and the outermost electrons?

Which noble gas should be used to write the abbreviated electron configuration for Pb?

When an atom has the same number of protons as electrons, it is said to be a(n)