AP Chemistry Review

Subatomic particles with a negative charge

• Electrons

• Neutrons

• Protons

• Quarks

Subatomic particles with a positive charge

• neutrons
• atomic mass
• protons
• isotopes

Value representing the number of protons in an element

• Atomic Mass
• Mass Number
• Valence Electrons
• Atomic Number

Measure mainly of the nuclear particles: protons + neutrons

• Subatomic Particles
• Atomic Number
• Atomic Mass
• Gluons

Tags

NGSS.HS-PS1-8

A charged atom

• Ion
• Isotope
• Electron Cloud
• Quark

How many protons does this isotope of titanium have?

• 48
• 22
• 26
• 70

How many neutrons does the isotope below have?     ⁸⁹ ₃₆Kr

• 53
• 36
• 89
• 125

If X is the symbol for an element, which of the following two symbols represent isotopes of the same element?

I. ⁷⁷₃₅X

II. ⁷⁷₃₃X

III. ⁸¹₃₇X

IV. ⁸¹₃₅ X

• I and II

• III and IV

• I and IV

• I and III

Tags

NGSS.MS-PS1-1

How many different isotopes are shown in this mass spectrum?

• 1

• 84

• 86

• 4

Tags

NGSS.HS-PS1-8

How many different isotopes of this element are shown in the mass spectrum?

• 98

• 7

• 100

• 95.9 g/mol