Answer:
Isotope, one of two or more species of atoms of a chemical element with the same atomic number and position in the periodic table and nearly identical chemical behaviour but with different atomic masses and physical properties.
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Answer:
Cl⁻
Explanation:
Definition of atomic radii
The atomic radius is the distance between center of two bonded atoms.
Trend along period:
As we move from left to right across the periodic table the number of valance electrons in an atom increase.The atomic size tend to decrease in same period of periodic table because the electrons are added with in the same shell. When the electron are added, at the same time protons are also added in the nucleus. The positive charge is going to increase and this charge is greater in effect than the charge of electrons. This effect lead to the greater nuclear attraction. The electrons are pull towards the nucleus and valance shell get closer to the nucleus. As a result of this greater nuclear attraction atomic radius decreases.
Trend along group:
In group by addition of electron atomic radii increase from top to bottom due to increase in atomic number and addition of extra shell.
In this way Cl⁻ will have the largest atomic radii because one extra electron is added and its atomic number is already greater than fluorine.
1.curium ( 1944 Marie and Pierre Curie
<span>2.einsteinium ( Albert Einstein) </span>
<span>3.fermium (1953 Enrico Fermi) </span>
<span>4.mendelevium (1955 Dmitri Mendeleev, who devised first Periodic Table) </span>
<span>5.nobelium ( 1957 Alfred Nobel) </span>
<span>6.niobium (1801 Niobe/ daughter of Tantalus) </span>
<span>7.samarium (1879 Samarski, a Russian engineer) </span>
<span>8.titanium (1791 Greek mythology, Titans, first sons of earth) </span>
<span>9.thorium ( 1819 named after Thor of course !!!:) ) </span>
<span>10.tantalum ( 1802 Tantalus of Greek mythology) pick which ever best that your more into hope this helped you alot:/</span>
Answer:
Given its huge success in describing the natural world for the past 150 years, the theory of evolution is remarkably misunderstood. In a recent episode of the Australian series of “I’m a Celebrity Get Me Out of Here”, former cricket star Shane Warne questioned the theory – asking “if humans evolved from monkeys, why haven’t today’s monkeys evolved”?
Similarly, a head teacher from a primary school in the UK recently stated that evolution is a theory rather than a fact. This is despite the fact that children in the UK start learning about evolution in Year 6 (ten to 11-year-olds), and have further lessons throughout high school. While the theory of evolution is well accepted in the UK compared with the rest of the world, a survey in 2005 indicated that more than 20% of the country’s population was not sure about it, or did not accept it.
Explanation:
