Elements of the PT
The first element in the periodic table that has an atomic number of 1.
Hydrogen
The Russian chemist who laid the framework that became the modern periodic table.
Dmitri Mendeleev
What are a set of elements sharing common properties called?
An element family
The periodic table is arranged in what way?
Increasing atomic number
True or False: Gamma rays are classified as ionizing radiation, thus, are they hazardous to life?
True. When ionizing radiation interacts with cells, it can cause damage to the cells and genetic material. If not properly repaired, this damage can result in the death of the cell or potentially harmful changes in the DNA.
The most abundant element in the Earth's atmosphere?
Nitrogen (N)
In 1960, what event was held wherein a revised list of elements were published?
A. World Wide Chemistry Conference
B. International Conference of Chemist Studies
C. International Conference of Chemistry
D. World Conference of Chemistry
E. Chemists' Society International Conference
C. International Conference of Chemistry
A very reactive set of elements that all occur in nature.
Alkali Metals
True or False: Some elements have the names of planets.
True. An example is Uranium, named from the planet Uranus.
Who was the English scientist that first discovered cells?
Robert Hooke first observed and named cells in 1665.
A highly conductive transition metal that's considered the gold standard for electrical wiring due to its excellent electrical conductivity, affordability, ductility, and thermal resistance, making it a versatile and cost-effective choice for various applications.
Copper (Cu)
UNESCO named ____ the International Year of the Periodic table to mark the 150th anniversary of Mendeleev's publication.
2019
Also known as inert gases and aerogens.
Noble Gases
What kind of element mostly occupy the periodic table?
A. Gases
B. Alloys
C. Fluids
D. Metals
E. Compounds
D. Metals. There are around 90 metals in the periodic table.
What organ is this: Your ______ is a small, pear-shaped organ that stores and releases bile.
______, an element with atomic number 10, is a colorless, odorless, and inert noble gas, known for its reddish-orange glow when excited in a vacuum discharge tube, and is used in various applications like lighting and lasers.
Neon (Ne)
In 1913, English physicist Henry Moseley used ______ to measure the wavelengths of elements to correlate the measurements to their atomic numbers.
X-rays
In the periodic table, the ________ sit between the transition metals on their left, and the metalloids on their right.
Post-Transition Metals
True or False: The organization that approves and updates the Periodic table is called IUPAC (International Union of Pure Applied Chemistry).
______ is a large group of diseases that can start in almost any organ or tissue of the body when abnormal cells grow uncontrollably and go beyond their usual boundaries to invade adjoining parts of the body and/or spread to other organs.
What is the atomic number of the last element in the periodic table (Oganesson - Og)?
Oganesson (Og) has an atomic number of 118.
True or False: Mendeleev's 1869 periodic table in Russian has a title that translates to "An scientific method study on a collection of elements ... based on their atomic weights and physical similarities."
False. The correct translation is "An experiment on a system of elements ... based on their atomic weights and chemical similarities."
A set of elements whose radioactivity is their most unique trait. Because of their unstable nucleus, they decay into other elements and other simple particles.
Actinides
Out of 118 elements, around how many of them are synthetic?
What is possibly the most lethal known element in the periodic table?
Polonium (Po). Because it is a naturally-occurring element that releases a huge amount of energy, many sources cite polonium as the most radioactive element. It has been suggested as a method of assassination.