Atomic Anatomy (CH4)

What is the correct name for the element with the symbol Fe?

• Fluorine

• Iron

• Tin

• Zinc

What is the correct formula for a compound consisting of two iron atoms and three oxygen atoms?

• FeO

• Fe₃O₂

• Fe₂O₃

• FeO₃

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

What is the atomic symbol for the carbon isotope with 7 neutrons?

• ¹²₆C

• ¹³₆C

• ¹¹₆C

• ¹⁴₆C

How many protons, neutrons, and electrons are in an uncharged atom of plutonium-244? (Atomic number = 94)

• 94p, 244n, 94e

• 94p, 150n, 94e

• 150p, 94n, 94e

• 94p, 94n, 150e

Which of the following is true about germanium (Ge)?

• It is a metal in group 2A.

• It is a nonmetal in group 6A.

• It is a metalloid in group 4A.

• It is a noble gas in group 8A.

Tags

NGSS.HS-PS1-1

How many electrons are in a Co²⁺ ion? (Atomic number = 27)

• 25

• 27

• 24

• 23

Tags

NGSS.HS-PS1-1

Which subatomic particles are most responsible for the chemical properties of an atom?

• Protons

• Neutrons

• Electrons

• All equally contribute

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which element is represented by the symbol Si?

• Sulfur

• Silicon

• Silver

• Sodium

What is the correct formula for carbon tetrabromide?

• CBr₄

• CBr₃

• Br₄C

• C₄Br

What is the atomic symbol for the isotope with atomic number 5 and mass number 11?

• ¹¹₄Be

• ¹¹₅B

• ¹⁰₅B

• ¹¹₆C