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What element has an atomic mass greater than 75 but less than 79?
Element 34, Selenium, has an atomic mass of about 78.96.
Are coins an element?
No, coins are not an element. Some coins may be made of nearly pure gold, silver, aluminum, or other metal elements, but most present-day coins are made of various metal alloys, often with different composition on the inside than on the outside.
What is the meaning of less than for subsets?
If the symbol is like "< " but rounded , then set A < B means every element of set A is found in set B, but there is some element of set B that is not in A. In words it says that A is a proper subset of B.
What is the ratio of a proton to the mass of a neutron?
The mass of a proton and neutron are pretty close. So the ratio will be roughly 1 to 1 (or 1:1). The neutron is heavier and if memory serves it is exactly the mass of an electron heavier than a proton. Note it takes around 1820 electron to equal the mass of one proton.
Is 8.7-0.26 greater or less than 8?
Less
Why is an aluminum nail less dense than the actual element?
An aluminum nail that is less dense than the element aluminum would not be made of pure aluminum, but would have to be an alloy of aluminum and some other substance. If an aluminum nail is made of pure aluminum, it would have the same density as the "actual" element.
What element is less electronegative than silicon?
Aluminum is less electronegative than silicon.
This element has one less proton then sodium?
The element with one less proton than sodium is magnesium. Sodium has 11 protons, while magnesium has 12.
What element has one less proton than gold?
The element with one less proton than gold is mercury. Gold has 79 protons, while mercury has 80 protons.
What is one less proton than noble gas?
A noble gas is an element found in group 18 of the periodic table, characterized by having a full outer electron shell. Therefore, one less proton than a noble gas would place the element in group 17 of the periodic table, known as the halogens. Halogens have one less proton than noble gases and are highly reactive nonmetals.
What element has one less proton than Zr in the periodic table?
Niobium (Nb) has one less proton than Zirconium (Zr) in the periodic table. Zirconium has 40 protons while Niobium has 41 protons.
What element is used to make electrical wiring because it is less dense than copper?
Aluminum.
Hematite is composed of oxygen and what element that is less abuyndant than aluminum but more abundant than calcium?
Hematite is composed of oxygen and iron, which is less abundant than aluminum but more abundant than calcium in Earth's crust.
What element has properties similar to both metals and non metals and has one less proton than carbon?
The element with properties similar to both metals and nonmetals and one less proton than carbon is boron. Boron is a metalloid that displays characteristics of both metals and nonmetals due to its position in the periodic table.
Has one less proton than Berillium?
Be is in the s block too. Li has one less proton than Be.
What element has one less proton than Argon?
Thallium (Tl) has one more proton then mercury (Hg), mercury has 79 protons, Thallium has 80 protons.
The mantle has less aluminum and less what than the crust does?
The mantle has less aluminum and less silicon than the crust does.
