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Assessment

Authored by Eriny matta

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7th Grade

Assessment
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6 questions

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1.

OPEN ENDED QUESTION

1 min • 2 pts

which of these elements higher in energy and why ?
Mg 1224 Fe 5526

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2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The number of protons plus neutrons ?

mass weight

Mass number

atomic number

atomic weight

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The atomic number of an element having 6 protons in its nucleus is

13
6
3
12

4.

MULTIPLE SELECT QUESTION

30 sec • 2 pts

The nucleus contains

Atom
Charges
Atomic number
Neutrons +proton
Electron

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A substance that can be observed without changing in matter

molecule

chemical property

physical property

6.

OPEN ENDED QUESTION

2 mins • 4 pts

Why can`t extinguished petroleum fires with water? Explain

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