Preview (20 questions)
1 Question
לפני 30 שניות
Q.

Zinc was first isolated by German chemist _________ in 1746.


Daniel Rutherford

Andreas Marggraf

Lincoln Marga

2 Question
לפני 30 שניות
Q.

The symbol of Zinc is ____.


Zn

Zi

Z

3 Question
לפני 30 שניות
Q.

Zinc is the first element in group _____ of the periodic table.


9

11

12

4 Question
לפני 30 שניות
Q.

Is Zinc a metal?


Yes

No

5 Question
לפני 30 שניות
Q.

The atomic number for Zinc is ______.


12

30

48

6 Question
לפני 30 שניות
Q.

__________ process of Zinc protects iron and steel from rusting.


Galvanizing

Unspoiled

Casting

7 Question
לפני 30 שניות
Q.

The melting point for zinc is _____ in Fahrenheit.


456 °F

787.15 °F

998.32 °F

8 Question
לפני 30 שניות
Q.

The boiling point for zinc is ______ in Celcius.


907 °C

1000 °C

944 °C

9 Question
לפני 30 שניות
Q.

The compound _________ is used as a wood preservative and a fire retardant for lumber.


Zinc sulfide

Zinc phosphate

Zinc chloride

10 Question
לפני 30 שניות
Q.

The color of Zinc is ________.


Yellow

Silvery-white

Red-violet

11 Question
לפני 30 שניות
Q.

The electronegativity of zinc is _______ in Pauling scales.


1.65

3.78

9.45

12 Question
לפני 30 שניות
Q.

Can Zinc be alloyed with other metals?


Yes

No

13 Question
לפני 30 שניות
Q.

Zinc itself appears to regulate ZAG levels in our bodies. 


True

False

14 Question
לפני 30 שניות
Q.

Zinc is in _______ state at room temperature.


Liquid

Solid

Gas

15 Question
לפני 30 שניות
Q.

Zinc is an essential trace element for all living organisms.


True

False

16 Question
לפני 30 שניות
Q.

The standard atomic weight for zinc is _____.


33.8 u

57.12 u

65.38 u

17 Question
לפני 30 שניות
Q.

Zinc is in the ___ block on the periodic table.


a

b

d

18 Question
לפני 30 שניות
Q.

Zinc has ______ stable isotopes.


Five

Four

Three

19 Question
לפני 30 שניות
Q.

The electrons per shell for zinc are _________.


2, 4, 6, 8

2, 8, 18, 2

2, 6, 8, 10

20 Question
לפני 30 שניות
Q.

Is Zinc a polar or nonpolar face?


Polar face

Nonpolar face