
EXAMEN BLOQUE IV
Authored by Prof. Martinez
Science
9th Grade
Used 4+ times

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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Es la unidad más pequeña que compone la materia y tiene las propie-dades de un elemento químico.
MOLECULA
MACROMOLECULA
ATOMO
CELULA
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Establece que la masa no se crea ni se destruye y que la masa total de las sustancias que participan en un cambio físico o químico permanece constante, fue formulada por Antoine Lavoisier en 1789
Ley de conservación de la materia
Ley de las proporciones definidas
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Las primeras ideas del modelo atómi-co fueron hechas por el filósofo griego
Leucipo y su discípulo Demócrito
Louis Prous
John Dalton
William Crooke
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se abrevia e-, fue descubier-to en 1879 por el químico y físico inglés William Crookes, la partícula más liviana con una masa de 9.11x10−31 kg, tiene carga negativa y se conoce como la car-ga eléctrica elemental con una magnitud de 1.602x10-19 C.
ELECTRON
PROTON
NEUTRON
LEPTON
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
NOMBRE QUE RECIBEN LAS PARTICULAS COLOREADAS EN NARANJA
PROTONES
ELECTRONES
NEUTRONES
QUARS
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
NOMBRE QUE RECIBE LA PARTE EXTERNA DEL ATOMO
NUCLEO
CORONA O CORTEZA
PARTICULAS SUBATOMICAS
LITOSFERA
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
SIGNIFICADO DE A ¨A¨
NUMERO ATOMICO
NUMERO MASICO
SIMBOLO
ELEMENTO
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