PT Test Review Flashcardzizz

Front

What is a halogen?

Back

Halogens are a group of elements in Group 17 of the periodic table, known for their reactivity and tendency to form salts with metals. Examples include fluorine (F), chlorine (Cl), bromine (Br), and iodine (I).

Front

Which element has the largest ionization energy?

Back

Ionization energy is the energy required to remove an electron from an atom. Generally, ionization energy increases across a period and decreases down a group. Lithium (Li) has the largest ionization energy among the given options.

Front

What is atomic radius?

Back

Atomic radius is the distance from the nucleus of an atom to the outermost shell of electrons. It generally increases down a group and decreases across a period.

Front

How many valence electrons does tin (Sn) have?

Back

Tin (Sn) has 4 valence electrons, as it is in Group 14 of the periodic table.

Front

What is the significance of valence electrons?

Back

Valence electrons are the outermost electrons of an atom and are crucial in determining how an element reacts chemically with other elements.

Front

What is the periodic table?

Back

The periodic table is a tabular arrangement of chemical elements, organized by increasing atomic number, which reflects the periodic trends in properties.

Front

What are the properties of halogens?

Back

Halogens are nonmetals, highly reactive, and exist in various states at room temperature (gas, liquid, solid). They readily form compounds with metals.

Front

What is the trend of atomic radius in the periodic table?

Back

Atomic radius decreases across a period from left to right and increases down a group due to the addition of electron shells.

Front

What is ionization energy?

Back

Ionization energy is the energy required to remove an electron from an atom in its gaseous state. It is a measure of how strongly an atom holds onto its electrons.

Front

What is the difference between atomic number and mass number?

Back

Atomic number is the number of protons in an atom's nucleus, while mass number is the total number of protons and neutrons.