1/1 t2 mt

1/1 t2 mt

7th Grade

25 Qs

quiz-placeholder

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1/1 t2 mt

1/1 t2 mt

Assessment

Quiz

Chemistry, Science

7th Grade

Medium

Created by

Minerva Florentino

Used 2+ times

FREE Resource

25 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

1. What is the charge of the nucleus of an atom?

positive

neutral

negative

zero

2.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Configure the electrons of oxygen.(Oxygen= 8 e-)

1.6.1

2.6

2.5

2.7

3.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

What is the mass number of the atom?

Protons=8, Neutrons=9

8

9

17

1

4.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

The proton number of Actinium is 89, its neutron is 139, what is its atomic number?

89

136

225

227

5.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Scientist who arranged the periodic table of elements?

Dimitri Mendeleev

Robert Boyle

Isaac Newton

Science teacher

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

They are all radioactive metals and most of them are made artificially.

actinides

lanthanides

metals

non-metals

7.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

These elements like Si, Ge, As are examples of what group?

metals

non-metals

metalloids

all of the above

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