atomic structure quiz

The [electric] charge of a neuton is

• -3

• 0

• -1

• +1

The [electric] charge of a electron is

• -1

• +1

• +2

• 0

Atoms [that are neutral] are said to have no electric [+ or -] charge because they:

• have an equal number of charged and non-charged particles.

• have neutrons in their nuclei.

• have an equal number of electrons and protons.

• have an equal number of neutrons and protons.

Tags

NGSS.MS-PS1-1

Which atomic particles have approximately the same mass [atomic mass unit, AMU]?

• protons and neutrons

• protons and electrons

• neutrons and electrons

• proton, neutron and electron

The element Lithium (Li) has 3 protons, how many electrons will a stable non-ionized [no charge] atom have?

• 5

• 2

• 3

• 9

The number "18" in the periodic table square shows:

• atomic mass.

• atomic number.

• elemental name.

• elemental symbol.

The number "39.948" in the periodic table square shows:

• elemental name.

• atomic number.

• atomic mass.

• elemental symbol.

What is the atomic mass of an atom with 16 protons, 16 electrons, and 18 neutrons?

• 34 AMU

• 18 AMU

• 16 AMU

• 2 AMU

What is the number of protons that the element in this image contain?

• 14
• 7
• 15
• 18

What particle uniquely identifies an element?

• Number of Valence Electrons
• Number of Protons
• Number of Electrons
• Atomic Mass