Isotopes Quiz (3rd block)

How many neutrons does the isotope of lithium have?

• 8
• 3
• 4
• 5

Tags

NGSS.HS-PS1-8

How many protons does this isotope of titanium have?

• 48
• 22
• 26
• 70

Tags

NGSS.HS-PS1-8

In a correctly written symbol what would be located in the "A" position?

• number of neutrons
• atomic number
• number of electrons 
• mass number

Tags

NGSS.HS-PS1-8

What quantities vary between isotopes of an element?

• protons, electrons, and atomic mass
• protons, electrons, and atomic number
• neutrons and electrons
• neutrons and atomic mass

Tags

NGSS.HS-PS1-8

Isotopes are atoms of the same element with different #’s of __________ & therefore different __________.

• n⁰ ;  atomic #’s
• p⁺ ; atomic #’s
• e^- ; atomic masses
• n⁰ ; atomic masses

Tags

NGSS.HS-PS1-8

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.HS-PS1-8

An atom is electrically neutral when

• protons and neutrons are the same
• protons and electrons are the same
• neutrons and electrons are the same
• neutrons balance the protons and electrons

Two isotopes of carbon are carbon-12 and carbon-14.  These isotopes differ from one another by two protons.

• true
• false

Tags

NGSS.HS-PS1-8

If the number of electrons in an atom changes you make a(n) __________________.

• ion
• isotope
• new element
• isomer

Ions are: 

• atoms with a positive or negative charge
• atoms with no charge
• atoms with ONLY a positive charge
• atoms with ONLY a negative charge