Examlex

Solved

Identify Which of the Following Statements Is True

question 48

Multiple Choice

Identify which of the following statements is true.


Definitions:

Atomic Number

The number of protons in the nucleus of an atom, determining the chemical properties of an element and its place in the periodic table.

Helium

A chemical element with symbol He and atomic number 2, known for being a lightweight, inert gas widely used in balloons and as a coolant.

Neon

A chemical element with the symbol Ne and atomic number 10, it is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air and is used in fluorescent lamps and signs.

Argon

A noble gas element with the atomic number 18, colorless, odorless, and inert, making up about 1% of the Earth's atmosphere.

Related Questions