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Sunny_sXe [5.5K]
3 years ago
5

1. Compared to most other metals, what properties do the alkali metals have? А low melting points and high densities B low melti

ng points and low densities C high melting point and high densities D high melting points and low densities​
Physics
1 answer:
ivann1987 [24]3 years ago
3 0

Answer:

B. low melting points and low densities

Explanation:

Alkali metals are any of the monovalent elements found in Group IA of the periodic table. They readily lose their one valence electron to form ionic compounds with nonmetals. Examples of alkali metal are Potassium (K), Lithium (L), and Sodium (Na).

Compared to most other metals, the chemical properties that alkali metals have are low melting points (28.5°C) and low densities that is typically less than 1 grams per cubic centimeters.

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Explanation:

Hola.

En este caso, podemos resolver este problema por medio del planteamiento de las siguientes ecuaciones:

1. Definimos <em>x</em> como el primer dígito y <em>y</em> como el segundo, por lo tanto, como su suma es 12, escribimos:

<em>x</em> + <em>y</em> = 12

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<em>x</em> = 3 <em>y</em>

De este modo, podemos resolver para <em>y</em>:

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