Answer:
1. Elements have only 1 type of atoms
2. Atomic Number
3. Atomic Mass
4. Isotopes
5. Allotropes
Explanation:
An element is a pure chemical substance made of same type of atom.
Elements are distinguished by their name, symbol, atomic number, melting point, boiling point, density and ionization energies. In the Periodic Table, elements are arranged according to their atomic number and they are grouped according to similar chemical properties and are depicted by their symbols.
<em>1. Elements have only 1 type of atoms</em>
<em>2. Atomic Number</em>= Number of protons is also indicative of electric charge or number of electrons present in the nucleus which determines chemical properties of the element.
<em>3. Atomic Mass</em>= the atomic mass of the element which is the total number of protons and neutrons in the nucleus of an atom of the element.
<em>4. Isotopes</em>= isotopes of an element have the same number of protons in their nucleus but differ in the number of neutrons. Naturally occurring elements have more than one stable isotope. Thus isotopes have similar chemical properties (due to same number of protons) but different nuclear properties (due to different number of neutrons).
<em>5. Allotropes</em>= atoms of an element can form bonds with each other in more than one way leading to difference in their chemical properties
Answer:
Atmospheric carbon dioxide is the raw material for photosynthesis, which plants rely on for producing sugars and other organic compounds.
Explanation:
The most accurate statement that supports the researcher's claim is that atmospheric carbon dioxide is the raw material for photosynthesis.
Photosynthesis is the process by which green plants manufactures their food in the presence of carbon dioxide and water using sunlight.
The product is usually glucose and oxygen.
The chemical equation is shown below;
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
This raw material is a by-product of cellular respiration in human beings. Other process also releases carbon dioxide. Green plants uses this organic material to manufacture its food through photosynthesis.
We can attribute the increased growth rate in plants to the proliferation of the gases in the atmosphere.
Answer:
C. The plastic leaf lacks a cellular structure.
Explanation:
can have brainliest pls
Answer:
a. shorten
Explanation:
Inability or failure for joints to move through their entire range of motion is caused by constrictions. These constrictions often results when the excess adipose tissues that surrounds the muscles and ligaments are not in required adequate proportion. These constrictions can be caused by ageing, fatigue, muscular diseases etc. As a result of these constriction in the joints, let say for example, the knee joint, the muscle and ligaments tends to shorten in length.
