The simplest way to use the periodic table to identify an element is by looking for the element's name or elemental symbol. The periodic table can be used to identify an element by looking for the element's atomic number. The atomic number of an element is the number of protons found within the atoms of that element.
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The correct answer is Sulfur, Arsenic, selenium, silicon, and antimony.
Atomic mass Na = 22.99 u.m.a
22.99 g ------------------ 6.02x10²³ atoms
175 g -------------------- ?? atoms
175 x (6.02x10²³) / 22.99 => 4.58x10²⁴ atoms
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The penguin has a sleek body that helps it to move quickly in water.
Answer:it’s C
Explanation:
A distant luminous object travels rapidly away from an observer.
