Atomic structure Practice

Subatomic particles with a negative charge

• electrons

• neutrons

• protons

• atoms

How many protons does an element with an atomic number of 33 and a mass of 67 amu have?

• 33

• 67

• 34

• 30

How many NEUTRONS does an element with an atomic number of 33 and a mass of 67 amu have?

• 33

• 34

• 67

• 30

Using the trends you noticed in the create a table activity, which pair of elements would you expect to have the most similar properties?

• Germanium (Ge) and Si (silicon)

• Copper (Cu) and Sodium (Na)

• Helium (He) and Hydrogen (H)

• Nitrogen (N) and Xenon (Xe)

Isotopes of an element differ ONLY in the number of which subatomic particle?

• protons

• neutrons

• protons and neutrons

• electrons

What is the charge of a sodium ion with 11 protons and 10 electrons?

• +1

• -1

• 0

• 2

Chlorine has two stable, naturally occurring isotopes: ³⁵Cl with a 75.76% abundance and ³⁷Cl with a 24.24% abundance. What is it's average atomic mass?

• 35.48 amu

• 34.969 amu

• 36.9659 amu

• 37.12 amu

How many neutrons does this element have?

• 36

• 84

• 48

• 42

What is the atomic number for the above element?

• 36

• 48

• 84

• 42

Tags

NGSS.MS-PS1-1

What charge does this element have?

• 0

• +1

• -1

• -12

Tags

NGSS.MS-PS1-1