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When metals react with other elements the atoms of the metals blank electrons?
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Negative ions form when atoms-blank-valence electrons?
Negative ions form when atoms GAIN valence electrons.
Fill in the blank. Elements of a compound _____ their properties?
elements are a compourn of THEIR properties
How many blank spaces were in mendeleeves periodic table?
There were 3 blank spaces in mendeleev's Periodic Table. He left it for the elements which were not discovered at that time.
How many blank spaces did Mendeleev leave in the periodic table which represented elements that had not yet been discovered?
Mendeleev left 3 blank spaces for the elements that had not yet been discovered.
What are The horizontal blank on the periodic table of elements are called periods.?
Rows
Negative ions form when atoms-blank-valence electrons?
Negative ions form when atoms GAIN valence electrons.
A blank bond occurs when two atoms share electrons to form compounds called molecules?
occurs in gas molecules; also known as diatomic elements.
When atoms in a covalent bond share electrons unequally the bond is said to be blank?
Polar bond
The happy atoms are the blank gases They dont react because blank?
The happy atoms are the noble gases. They don't react because their valence electron shells are full. The goal of every element is to have the most outer shell of electrons full. The first shell holds 2 electrons, and every shell after that holds 8 electrons. So helium and hydrogen both want to have 2 electrons in their outer shells. Elements like neon and argon have 8 electrons in their outer shells. Atoms like chlorine and fluorine have 7 electrons in their outer shells. This means that aren't "happy" because they want to have 8. This is why they ionically bond with atoms like sodium that have 1 electron in their outer shells. Sodium gives that electron to chlorine and now both have 8 electrons in their outer shells.
When two pairs of electrons are shared between two atoms a ----------------- bond is formed?
The word in the blank should be 'covalent'.
All atoms have a blank charge?
If there are more protons than electrons there is a positive charge. If there is more electrons than protons there is a negative charge.
Compounds?
Blank has different properties from the elements that formed it, is a pure substance made of 2 or more elements and can be represented by a chemical formula
Why was mendeleev work importanr?
Mendeleev, a Russian who enjoyed playing solitaire, marked a set of blank cards with the known elements, then divided them into groups based upon how they combined (i.e. by what we now call "valence"), with "metals" (i.e. electron donors) to the left, and "non-metals" to the left. Next, he arranged each group by weight (or mass), with lighter (less-dense) ones to the top and heavier (denser) ones toward the bottom. What emerged was "The Periodic Table" arranged in eight major columns that reflect the outer "octet" of electrons (with another ten columns interspersed, to account for more-complex atoms that transition from eight to eighteen electrons in the intermediate orbits).
Atoms are made up of blank particles?
atoms are made of subatomic particles.
Electrons can be found in energy levels or blank that surround the nucleus of an atom?
the blank is shell
Blank can create images of atoms?
yes
Blank is the most important of the transition elements?
Blank is not a name for a chemical element.
