Ions and Isotopes

How many neutrons are in an atom of carbon-14?

• 6

• 8

• 10

• 14

How many protons does this isotope of titanium have?

• 22

• 26

• 48

• 70

Tags

NGSS.MS-PS1-1

How many electrons are in an atom that has an atomic number of 34, an atomic mass of 74 and a charge of -2?

• 2

• 34

• 36

• 40

Write the hyphen notation for the isotope that has 39 protons and 50 neutrons.

• Yttrium-11

• Tin-39

• Tin-89

• Yttrium-89

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

What is the name of the pictured isotope?

• Carbon-12
• Carbon-13
• Carbon-14
• Carbon-15

Tags

NGSS.MS-PS1-1

An atom that has gained or lost electrons.

• Normal/Neutral Atom

• Ion

• Isotope

An atom with the same number of protons and electrons (no charge) and the expected atomic mass or number of neutrons from the periodic table.

• Neutral/Normal Atom

• Ion

• Isotope

A negatively charged ion that has gained electrons

• Anion

• Cation

• Neutral Atom

• Isotope

A positively charged ion that has lost electrons

• Anion

• Cation

• Neutral Atom

• Isotope