Periodic Table

The third row of the periodic table contains elements with 3p electrons. Some examples of elements in this row are phosphorus, sulfur, and chlorine.

Metallic nature increases down a group because as you move down, the number of electron shells increases, leading to the outer electrons being further away from the nucleus. This results in greater atomic size and shielding of the outer electrons from the attractive force of the nucleus, decreasing the effective nuclear charge experienced by the outer electrons, making it easier for them to be lost and exhibit metallic characteristics.

Lightning bolts, stitching on clothing, a pattern on a zigzag road, and the path of a snake are all examples of things that zigzag.

"Rock" is a broad term and not a specific element listed on the periodic table. Rocks are composed of minerals, which are chemical compounds made up of elements from the periodic table. Examples of elements commonly found in rocks include silicon, oxygen, aluminum, and iron.

No, Adam's apples typically do not move left and right in the neck. The Adam's apple moves up and down when you swallow due to the motion of the larynx. If you are experiencing left and right movement of your Adam's apple, it may be worth consulting a healthcare professional for evaluation.

Some common elements from the periodic table used in everyday life include:

• Oxygen: essential for breathing
• Carbon: found in organic molecules like proteins and sugars
• Iron: used in construction and in our blood
• Sodium: found in table salt and important for nerve function

Potassium is kalium in Latin.

nothing but protein ....written in correctly....

The atomic radii of elements follow a general trend: As you move down a group on the periodic table, atomic radius generally increases. Among the three elements mentioned, Se would have the largest atomic radius, followed by Te, with Br having the smallest atomic radius.

The elements in column 18 of the periodic table, also known as the noble gases, all have a full outer electron shell, making them stable and unreactive. This is because their outer shell is filled with electrons, so they do not typically form chemical bonds with other elements.

A family is a vertical column in the periodic table. Elements in a family all share similar characteristics, whether they be physical or chemical. There are 18 family (or group) columns in the periodic table.

The combining ratio between elements in group 2 (alkaline earth metals) and elements in group 15 (nitrogen family) is typically 3:2. For example, magnesium oxide (MgO) forms when one atom of magnesium (group 2) combines with one atom of oxygen (group 16), resulting in a 1:1 ratio.

Alkali metals are known for there ability to destroy blood plankta inside your blood stream (been 3 recorded deaths so far). Also transition metals are known for there low electronegativity and there ability to produce amphiprotic substances. Just so many awesome reasons why you cant pass transition metals.

The number of electrons that can be accommodated in an "N" shell is given by the formula 2n^2, where "n" is the principal quantum number of the shell. For example, in the third shell (n=3), the number of electrons that can be accommodated is 2(3)^2 = 18 electrons.

Periodicity on the periodic table refers to the repeating pattern of physical and chemical properties of elements as you move across or down the table. This periodic pattern is a result of the elements having similar outer electron configurations within the same group or period. Periodicity helps to predict an element's properties based on its position in the periodic table.

sulphur

Periods are arranged horizontally on the periodic table based on the number of energy levels in an atom, while groups are arranged vertically based on the similar chemical properties of elements. Periods indicate the number of electron shells an element has, while groups indicate the number of valence electrons an element has, which influences its reactivity.

The noble gases, such as helium, neon, and argon, were difficult for Mendeleev to add to his table as they were found to be chemically inert and did not easily combine with other elements in fixed ratios. This challenged the periodicity of his table, which was based on the repeating patterns of chemical properties.

The elements in Figure 6-2 can be identified as metals or nonmetals based on their location within the periodic table. Metals are typically found on the left side of the periodic table, while nonmetals are located on the right. Review the figure and classify each element accordingly.

No, lead is heavier than platinum. Lead has a higher density and atomic weight compared to platinum.

There are three types of hydride: saline, metallic and covalent (there are alternative names for the types of hydride, but these are most common).

Saline hydrides have crystalline, salt like structures, and are formed with hydrogen and the group 1 and group 2 metals (the alkali metals and the alkaline earth metals).

Metallic hydrides are brittle solids with fairly simple structures, generally formed between hydrogen and the transition metals. They can often have non-integer stoichiometries, e.g. ZrH1.3.

Covalent hydrides are formed between hydrogen and the p-block elements, and tend to be gases as room temperature (there are exceptions to this, because of hydrogen bonding).

Water is called the Mickey Mouse Molecule because water molecules look like Mickey Mouse's head when they are enlarged. The two hydrogen atoms form the "ears", and the oxygen atom forms the "head."

The chemical symbol for copper is "Cu" and its atomic number is 29.